3121333012 has 48 divisors (see below), whose sum is σ = 6323466240. Its totient is φ = 1320485472.

The previous prime is 3121333009. The next prime is 3121333037. The reversal of 3121333012 is 2103331213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999189 + ... + 1002307.

It is an arithmetic number, because the mean of its divisors is an integer number (131738880).

Almost surely, 2^3121333012 is an apocalyptic number.

It is an amenable number.

3121333012 is an abundant number, since it is smaller than the sum of its proper divisors (3202133228).

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

3121333012 is a wasteful number, since it uses less digits than its factorization.

3121333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580 (or 3578 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3121333012 is about 55868.8912723351. The cubic root of 3121333012 is about 1461.4367872565.

Adding to 3121333012 its reverse (2103331213), we get a palindrome (5224664225).

The spelling of 3121333012 in words is "three billion, one hundred twenty-one million, three hundred thirty-three thousand, twelve".