3121010120 has 16 divisors (see below), whose sum is σ = 7022272860. Its totient is φ = 1248404032.

The previous prime is 3121010117. The next prime is 3121010153. The reversal of 3121010120 is 210101213.

It can be written as a sum of positive squares in 2 ways, for example, as 2821096996 + 299913124 = 53114^2 + 17318^2 .

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, 39012587 + ... + 39012666.

Almost surely, 2^3121010120 is an apocalyptic number.

It is an amenable number.

3121010120 is an abundant number, since it is smaller than the sum of its proper divisors (3901262740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121010120 is a wasteful number, since it uses less digits than its factorization.

3121010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78025264 (or 78025260 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 3121010120 is about 55866.0014677979. The cubic root of 3121010120 is about 1461.3863918519.

Adding to 3121010120 its reverse (210101213), we get a palindrome (3331111333).

The spelling of 3121010120 in words is "three billion, one hundred twenty-one million, ten thousand, one hundred twenty".