3121402037 has 32 divisors (see below), whose sum is σ = 3603852000. Its totient is φ = 2682408960.

The previous prime is 3121402027. The next prime is 3121402049. The reversal of 3121402037 is 7302041213.

It can be written as a sum of positive squares in 16 ways, for example, as 2917512196 + 203889841 = 54014^2 + 14279^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121402037 - 2²⁴ = 3104624821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121402027) 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, 1374539 + ... + 1376807.

It is an arithmetic number, because the mean of its divisors is an integer number (112620375).

Almost surely, 2^3121402037 is an apocalyptic number.

It is an amenable number.

3121402037 is a deficient number, since it is larger than the sum of its proper divisors (482449963).

3121402037 is a wasteful number, since it uses less digits than its factorization.

3121402037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3121402037 is about 55869.5090098347. The cubic root of 3121402037 is about 1461.4475598901.

The spelling of 3121402037 in words is "three billion, one hundred twenty-one million, four hundred two thousand, thirty-seven".