2131031404 has 6 divisors (see below), whose sum is σ = 3729304964. Its totient is φ = 1065515700.

The previous prime is 2131031387. The next prime is 2131031411. The reversal of 2131031404 is 4041301312.

It is a super-2 number, since 2×2131031404² = 9082589689668422432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266378922 + ... + 266378929.

Almost surely, 2^2131031404 is an apocalyptic number.

It is an amenable number.

2131031404 is a deficient number, since it is larger than the sum of its proper divisors (1598273560).

2131031404 is a wasteful number, since it uses less digits than its factorization.

2131031404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532757855 (or 532757853 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2131031404 is about 46163.0956934216. The cubic root of 2131031404 is about 1286.8559944342.

Adding to 2131031404 its reverse (4041301312), we get a palindrome (6172332716).

The spelling of 2131031404 in words is "two billion, one hundred thirty-one million, thirty-one thousand, four hundred four".