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131020431010112 = 267477003988843
BaseRepresentation
bin11101110010100110010010…
…001111111010100101000000
3122011220102122002222120020002
4131302212102033322211000
5114133114320314310422
61142353542143535132
736411625264162610
oct3562462217724500
9564812562876202
10131020431010112
11388244a8678446
12128407792ba4a8
135815234606907
14244d5cbc44a40
15102321e817692
hex7729923fa940

131020431010112 has 112 divisors (see below), whose sum is σ = 303465403207680. Its totient is φ = 54955494876672.

The previous prime is 131020431010109. The next prime is 131020431010141. The reversal of 131020431010112 is 211010134020131.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1474696763 + ... + 1474785605.

It is an arithmetic number, because the mean of its divisors is an integer number (2709512528640).

Almost surely, 2131020431010112 is an apocalyptic number.

It is an amenable number.

131020431010112 is an abundant number, since it is smaller than the sum of its proper divisors (172444972197568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131020431010112 is an equidigital number, since it uses as much as digits as its factorization.

131020431010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158948 (or 158938 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 131020431010112 its reverse (211010134020131), we get a palindrome (342030565030243).

The spelling of 131020431010112 in words is "one hundred thirty-one trillion, twenty billion, four hundred thirty-one million, ten thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 47 56 64 94 112 188 224 329 376 448 658 752 1316 1504 2632 3008 5264 10528 21056 70039 88843 140078 177686 280156 355372 490273 560312 621901 710744 980546 1120624 1243802 1421488 1961092 2241248 2487604 2842976 3291833 3922184 4175621 4482496 4975208 5685952 6583666 7844368 8351242 9950416 13167332 15688736 16702484 19900832 23042831 26334664 29229347 31377472 33404968 39801664 46085662 52669328 58458694 66809936 92171324 105338656 116917388 133619872 184342648 210677312 233834776 267239744 368685296 467669552 737370592 935339104 1474741184 1870678208 6222474877 12444949754 24889899508 43557324139 49779799016 87114648278 99559598032 174229296556 199119196064 292456319219 348458593112 398238392128 584912638438 696917186224 1169825276876 1393834372448 2047194234533 2339650553752 2787668744896 4094388469066 4679301107504 8188776938132 9358602215008 16377553876264 18717204430016 32755107752528 65510215505056 131020431010112