131612123302531 has 2 divisors, whose sum is σ = 131612123302532. Its totient is φ = 131612123302530.

The previous prime is 131612123302523. The next prime is 131612123302573. The reversal of 131612123302531 is 135203321216131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131612123302531 - 2³ = 131612123302523 is a prime.

It is a super-2 number, since 2×131612123302531² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131612123302511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65806061651265 + 65806061651266.

It is an arithmetic number, because the mean of its divisors is an integer number (65806061651266).

Almost surely, 2^{131612123302531} is an apocalyptic number.

131612123302531 is a deficient number, since it is larger than the sum of its proper divisors (1).

131612123302531 is an equidigital number, since it uses as much as digits as its factorization.

131612123302531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 131612123302531 its reverse (135203321216131), we get a palindrome (266815444518662).

The spelling of 131612123302531 in words is "one hundred thirty-one trillion, six hundred twelve billion, one hundred twenty-three million, three hundred two thousand, five hundred thirty-one".