3121326938807 has 32 divisors (see below), whose sum is σ = 3927635357184. Its totient is φ = 2409694185600.

The previous prime is 3121326938801. The next prime is 3121326938809. The reversal of 3121326938807 is 7088396231213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3121326938807 - 2⁸ = 3121326938551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121326938801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5930933 + ... + 6435729.

It is an arithmetic number, because the mean of its divisors is an integer number (122738604912).

Almost surely, 2^{3121326938807} is an apocalyptic number.

3121326938807 is a deficient number, since it is larger than the sum of its proper divisors (806308418377).

3121326938807 is a wasteful number, since it uses less digits than its factorization.

3121326938807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505559.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 3121326938807 in words is "three trillion, one hundred twenty-one billion, three hundred twenty-six million, nine hundred thirty-eight thousand, eight hundred seven".