3121233012 has 72 divisors (see below), whose sum is σ = 7955001600. Its totient is φ = 1031849280.

The previous prime is 3121233007. The next prime is 3121233023. The reversal of 3121233012 is 2103321213.

3121233012 is a `hidden beast` number, since 312 + 12 + 330 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3316462 + ... + 3317402.

Almost surely, 2^3121233012 is an apocalyptic number.

It is an amenable number.

3121233012 is an abundant number, since it is smaller than the sum of its proper divisors (4833768588).

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

3121233012 is a wasteful number, since it uses less digits than its factorization.

3121233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3121233012 is about 55867.9963127370. The cubic root of 3121233012 is about 1461.4211801169.

Adding to 3121233012 its reverse (2103321213), we get a palindrome (5224554225).

The spelling of 3121233012 in words is "three billion, one hundred twenty-one million, two hundred thirty-three thousand, twelve".