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1313122012122 = 238331322213793
BaseRepresentation
bin10011000110111100001…
…010111100101111011010
311122112101201201201212010
4103012330022330233122
5133003233213341442
62443123453530350
7163604246640444
oct23067412745732
94575351651763
101313122012122
1146698a163108
121925a9aa39b6
1396a99848b5b
14477ac1d5494
1524255e28b9c
hex131bc2bcbda

1313122012122 has 64 divisors (see below), whose sum is σ = 2668280985216. Its totient is φ = 430744504320.

The previous prime is 1313122012087. The next prime is 1313122012127. The reversal of 1313122012122 is 2212102213131.

It is not an unprimeable number, because it can be changed into a prime (1313122012127) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 346194258 + ... + 346198050.

It is an arithmetic number, because the mean of its divisors is an integer number (41691890394).

Almost surely, 21313122012122 is an apocalyptic number.

1313122012122 is an abundant number, since it is smaller than the sum of its proper divisors (1355158973094).

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

1313122012122 is a wasteful number, since it uses less digits than its factorization.

1313122012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1313122012122 its reverse (2212102213131), we get a palindrome (3525224225253).

The spelling of 1313122012122 in words is "one trillion, three hundred thirteen billion, one hundred twenty-two million, twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 83 166 249 313 498 626 939 1878 2221 3793 4442 6663 7586 11379 13326 22758 25979 51958 77937 155874 184343 314819 368686 553029 629638 695173 944457 1106058 1187209 1390346 1888914 2085519 2374418 3561627 4171038 7123254 8424253 16848506 25272759 50545518 57699359 98538347 115398718 173098077 197076694 295615041 346196154 591230082 699212999 1398425998 2097638997 2636791189 4195277994 5273582378 7910373567 15820747134 218853668687 437707337374 656561006061 1313122012122