2131023208 has 16 divisors (see below), whose sum is σ = 3997137060. Its totient is φ = 1065120000.

The previous prime is 2131023187. The next prime is 2131023217. The reversal of 2131023208 is 8023201312.

It can be written as a sum of positive squares in 2 ways, for example, as 2106993604 + 24029604 = 45902^2 + 4902^2 .

It is a super-2 number, since 2×2131023208² = 9082519826069222528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25143 + ... + 69958.

Almost surely, 2^2131023208 is an apocalyptic number.

It is an amenable number.

2131023208 is a deficient number, since it is larger than the sum of its proper divisors (1866113852).

2131023208 is a wasteful number, since it uses less digits than its factorization.

2131023208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97908 (or 97904 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2131023208 is about 46163.0069211268. The cubic root of 2131023208 is about 1286.8543446720.

The spelling of 2131023208 in words is "two billion, one hundred thirty-one million, twenty-three thousand, two hundred eight".