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131202440242011 = 33103139169338999
BaseRepresentation
bin11101110101001111110010…
…110110000010001101011011
3122012112211102122110112111000
4131311033302312002031123
5114144110044200221021
61143013322521240043
736431030531134635
oct3565176266021533
9565484378415430
10131202440242011
1138894708092256
121286bab3933023
13582944c5a8578
14245833681da55
151027d23608b26
hex7753f2d8235b

131202440242011 has 32 divisors (see below), whose sum is σ = 196263100800000. Its totient is φ = 86618208847104.

The previous prime is 131202440241967. The next prime is 131202440242037. The reversal of 131202440242011 is 110242044202131.

131202440242011 is a `hidden beast` number, since 1 + 3 + 1 + 202 + 4 + 402 + 42 + 0 + 11 = 666.

It is not a de Polignac number, because 131202440242011 - 214 = 131202440225627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131202440242051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386859490 + ... + 387198488.

It is an arithmetic number, because the mean of its divisors is an integer number (6133221900000).

Almost surely, 2131202440242011 is an apocalyptic number.

131202440242011 is a deficient number, since it is larger than the sum of its proper divisors (65060660557989).

131202440242011 is a wasteful number, since it uses less digits than its factorization.

131202440242011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478280 (or 478274 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 131202440242011 its reverse (110242044202131), we get a palindrome (241444484444142).

The spelling of 131202440242011 in words is "one hundred thirty-one trillion, two hundred two billion, four hundred forty million, two hundred forty-two thousand, eleven".

Divisors: 1 3 9 27 103 309 927 2781 139169 338999 417507 1016997 1252521 3050991 3757563 9152973 14334407 34916897 43003221 104750691 129009663 314252073 387028989 942756219 47178151831 141534455493 424603366479 1273810099437 4859349638593 14578048915779 43734146747337 131202440242011