131013012329 has 4 divisors (see below), whose sum is σ = 133233571920. Its totient is φ = 128792452740.

The previous prime is 131013012307. The next prime is 131013012331. The reversal of 131013012329 is 923210310131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131013012329 - 2¹² = 131013008233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131013012298 and 131013012307.

It is not an unprimeable number, because it can be changed into a prime (131013012359) 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, 1110279707 + ... + 1110279824.

It is an arithmetic number, because the mean of its divisors is an integer number (33308392980).

Almost surely, 2^131013012329 is an apocalyptic number.

It is an amenable number.

131013012329 is a deficient number, since it is larger than the sum of its proper divisors (2220559591).

131013012329 is an equidigital number, since it uses as much as digits as its factorization.

131013012329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220559590.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 131013012329 in words is "one hundred thirty-one billion, thirteen million, twelve thousand, three hundred twenty-nine".