131562106631 has 4 divisors (see below), whose sum is σ = 132250913664. Its totient is φ = 130873299600.

The previous prime is 131562106609. The next prime is 131562106699. The reversal of 131562106631 is 136601265131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136601265131 = 116177 ⋅1175803.

It is a cyclic number.

It is not a de Polignac number, because 131562106631 - 2²² = 131557912327 is a prime.

It is a super-2 number, since 2×131562106631² (a number of 23 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 = 131562106591 and 131562106600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131562108631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344403230 + ... + 344403611.

It is an arithmetic number, because the mean of its divisors is an integer number (33062728416).

Almost surely, 2^131562106631 is an apocalyptic number.

131562106631 is a deficient number, since it is larger than the sum of its proper divisors (688807033).

131562106631 is an equidigital number, since it uses as much as digits as its factorization.

131562106631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688807032.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 131562106631 in words is "one hundred thirty-one billion, five hundred sixty-two million, one hundred six thousand, six hundred thirty-one".