2131303031 has 32 divisors (see below), whose sum is σ = 2595898368. Its totient is φ = 1723962240.

The previous prime is 2131302991. The next prime is 2131303033. The reversal of 2131303031 is 1303031312.

It is not a de Polignac number, because 2131303031 - 2¹⁰ = 2131302007 is a prime.

It is a super-2 number, since 2×2131303031² = 9084905219899573922, 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 (2131303033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447941 + ... + 452673.

It is an arithmetic number, because the mean of its divisors is an integer number (81121824).

Almost surely, 2^2131303031 is an apocalyptic number.

2131303031 is a deficient number, since it is larger than the sum of its proper divisors (464595337).

2131303031 is a wasteful number, since it uses less digits than its factorization.

2131303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 2131303031 is about 46166.0376359072. The cubic root of 2131303031 is about 1286.9106674879.

Adding to 2131303031 its reverse (1303031312), we get a palindrome (3434334343).

The spelling of 2131303031 in words is "two billion, one hundred thirty-one million, three hundred three thousand, thirty-one".