131330031 has 16 divisors (see below), whose sum is σ = 200304384. Its totient is φ = 74977344.

The previous prime is 131330021. The next prime is 131330053. The reversal of 131330031 is 130033131.

It is not a de Polignac number, because 131330031 - 2⁵ = 131329999 is a prime.

It is a super-2 number, since 2×131330031² = 34495154084921922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330021) 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, 29035 + ... + 33251.

It is an arithmetic number, because the mean of its divisors is an integer number (12519024).

Almost surely, 2^131330031 is an apocalyptic number.

131330031 is a deficient number, since it is larger than the sum of its proper divisors (68974353).

131330031 is a wasteful number, since it uses less digits than its factorization.

131330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 131330031 is about 11459.9315442982. The cubic root of 131330031 is about 508.3014503936.

Adding to 131330031 its reverse (130033131), we get a palindrome (261363162).

The spelling of 131330031 in words is "one hundred thirty-one million, three hundred thirty thousand, thirty-one".