3121322438 has 16 divisors (see below), whose sum is σ = 5043242736. Its totient is φ = 1440294240.

The previous prime is 3121322437. The next prime is 3121322443. The reversal of 3121322438 is 8342231213.

3121322438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3121322438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121322437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142145 + ... + 162627.

It is an arithmetic number, because the mean of its divisors is an integer number (315202671).

Almost surely, 2^3121322438 is an apocalyptic number.

3121322438 is a deficient number, since it is larger than the sum of its proper divisors (1921920298).

3121322438 is a wasteful number, since it uses less digits than its factorization.

3121322438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26359.

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

The square root of 3121322438 is about 55868.7966399850. The cubic root of 3121322438 is about 1461.4351369733.

The spelling of 3121322438 in words is "three billion, one hundred twenty-one million, three hundred twenty-two thousand, four hundred thirty-eight".