131120155503031 has 16 divisors (see below), whose sum is σ = 138586205197440. Its totient is φ = 123710712588000.

The previous prime is 131120155503023. The next prime is 131120155503041. The reversal of 131120155503031 is 130305551021131.

It is a cyclic number.

It is not a de Polignac number, because 131120155503031 - 2³ = 131120155503023 is a prime.

It is a super-2 number, since 2×131120155503031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131120155502984 and 131120155503002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131120155503041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42395341 + ... + 45382873.

It is an arithmetic number, because the mean of its divisors is an integer number (8661637824840).

Almost surely, 2^{131120155503031} is an apocalyptic number.

131120155503031 is a deficient number, since it is larger than the sum of its proper divisors (7466049694409).

131120155503031 is a wasteful number, since it uses less digits than its factorization.

131120155503031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997006.

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 131120155503031 in words is "one hundred thirty-one trillion, one hundred twenty billion, one hundred fifty-five million, five hundred three thousand, thirty-one".