3130121992 has 8 divisors (see below), whose sum is σ = 5868978750. Its totient is φ = 1565060992.

The previous prime is 3130121983. The next prime is 3130122053. The reversal of 3130121992 is 2991210313.

3130121992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3039757956 + 90364036 = 55134^2 + 9506^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195632617 + ... + 195632632.

Almost surely, 2^3130121992 is an apocalyptic number.

It is an amenable number.

3130121992 is a deficient number, since it is larger than the sum of its proper divisors (2738856758).

3130121992 is a wasteful number, since it uses less digits than its factorization.

3130121992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391265255 (or 391265251 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 3130121992 is about 55947.4931699357. The cubic root of 3130121992 is about 1462.8071955276.

The spelling of 3130121992 in words is "three billion, one hundred thirty million, one hundred twenty-one thousand, nine hundred ninety-two".