130131031 has 4 divisors (see below), whose sum is σ = 130858200. Its totient is φ = 129403864.

The previous prime is 130131017. The next prime is 130131037.

It is a happy number.

130131031 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130131031 is a prime.

It is a super-2 number, since 2×130131031² = 33868170458245922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131037) 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, 363316 + ... + 363673.

It is an arithmetic number, because the mean of its divisors is an integer number (32714550).

Almost surely, 2^130131031 is an apocalyptic number.

130131031 is a deficient number, since it is larger than the sum of its proper divisors (727169).

130131031 is an equidigital number, since it uses as much as digits as its factorization.

130131031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727168.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 130131031 is about 11407.4988932719. The cubic root of 130131031 is about 506.7498438487.

The spelling of 130131031 in words is "one hundred thirty million, one hundred thirty-one thousand, thirty-one".