131120235513225 has 72 divisors (see below), whose sum is σ = 268413594488000. Its totient is φ = 59937875544960.

The previous prime is 131120235513203. The next prime is 131120235513251. The reversal of 131120235513225 is 522315532021131.

131120235513225 is a `hidden beast` number, since 1 + 3 + 11 + 20 + 23 + 551 + 32 + 25 = 666.

It is not a de Polignac number, because 131120235513225 - 2⁸ = 131120235512969 is a prime.

It is a super-2 number, since 2×131120235513225² (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 131120235513225.

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 71 ways as a sum of consecutive naturals, for example, 31924767 + ... + 35797083.

Almost surely, 2^{131120235513225} is an apocalyptic number.

131120235513225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131120235513225 is an abundant number, since it is smaller than the sum of its proper divisors (137293358974775).

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

131120235513225 is a wasteful number, since it uses less digits than its factorization.

131120235513225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893839 (or 3893831 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 131120235513225 its reverse (522315532021131), we get a palindrome (653435767534356).

The spelling of 131120235513225 in words is "one hundred thirty-one trillion, one hundred twenty billion, two hundred thirty-five million, five hundred thirteen thousand, two hundred twenty-five".