2131193804 has 12 divisors (see below), whose sum is σ = 3729931800. Its totient is φ = 1065499008.

The previous prime is 2131193791. The next prime is 2131193819. The reversal of 2131193804 is 4083911312.

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, 49052 + ... + 81660.

It is an arithmetic number, because the mean of its divisors is an integer number (310827650).

Almost surely, 2^2131193804 is an apocalyptic number.

It is an amenable number.

2131193804 is a deficient number, since it is larger than the sum of its proper divisors (1598737996).

2131193804 is a wasteful number, since it uses less digits than its factorization.

2131193804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48952 (or 48950 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2131193804 is about 46164.8546407329. The cubic root of 2131193804 is about 1286.8886828474. Note that the first 3 decimals are identical.

The spelling of 2131193804 in words is "two billion, one hundred thirty-one million, one hundred ninety-three thousand, eight hundred four".