3121313401424 has 40 divisors (see below), whose sum is σ = 6403946770728. Its totient is φ = 1468701020160.

The previous prime is 3121313401189. The next prime is 3121313401447. The reversal of 3121313401424 is 4241043131213.

3121313401424 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 4 ways, for example, as 478542965824 + 2642770435600 = 691768^2 + 1625660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053874 + ... + 3234350.

Almost surely, 2^{3121313401424} is an apocalyptic number.

3121313401424 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3121313401424 is an abundant number, since it is smaller than the sum of its proper divisors (3282633369304).

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

3121313401424 is a wasteful number, since it uses less digits than its factorization.

3121313401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190223 (or 1190217 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 3121313401424 its reverse (4241043131213), we get a palindrome (7362356532637).

The spelling of 3121313401424 in words is "three trillion, one hundred twenty-one billion, three hundred thirteen million, four hundred one thousand, four hundred twenty-four".