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131243320123030 = 25191933579037909
BaseRepresentation
bin11101110101110101110111…
…011110011001111010010110
3122012200201221122011122211101
4131311311313132121322112
5114200242304422414110
61143044203211100314
736434005551321343
oct3565656736317226
9565621848148741
10131243320123030
11388aaa85780995
1212877a0244169a
135830265a2bb8b
14245a2d3bcb7ca
151028e1749613a
hex775d77799e96

131243320123030 has 32 divisors (see below), whose sum is σ = 249960007634400. Its totient is φ = 49476620040192.

The previous prime is 131243320122917. The next prime is 131243320123037. The reversal of 131243320123030 is 30321023342131.

It is a super-2 number, since 2×1312433201230302 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131243320123030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131243320123037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1789482285 + ... + 1789555624.

It is an arithmetic number, because the mean of its divisors is an integer number (7811250238575).

Almost surely, 2131243320123030 is an apocalyptic number.

131243320123030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131243320123030 is a deficient number, since it is larger than the sum of its proper divisors (118716687511370).

131243320123030 is a wasteful number, since it uses less digits than its factorization.

131243320123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579038128.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 131243320123030 its reverse (30321023342131), we get a palindrome (161564343465161).

The spelling of 131243320123030 in words is "one hundred thirty-one trillion, two hundred forty-three billion, three hundred twenty million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 19 38 95 190 193 386 965 1930 3667 7334 18335 36670 3579037909 7158075818 17895189545 35790379090 68001720271 136003440542 340008601355 680017202710 690754316437 1381508632874 3453771582185 6907543164370 13124332012303 26248664024606 65621660061515 131243320123030