3131121002 has 8 divisors (see below), whose sum is σ = 4697105700. Its totient is φ = 1565419104.

The previous prime is 3131121001. The next prime is 3131121011. The reversal of 3131121002 is 2001211313.

3131121002 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 2 ways, for example, as 2594781721 + 536339281 = 50939^2 + 23159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3131121001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40427 + ... + 88862.

Almost surely, 2^3131121002 is an apocalyptic number.

3131121002 is a deficient number, since it is larger than the sum of its proper divisors (1565984698).

3131121002 is a wasteful number, since it uses less digits than its factorization.

3131121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141400.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3131121002 is about 55956.4205610044. The cubic root of 3131121002 is about 1462.9628021971.

Adding to 3131121002 its reverse (2001211313), we get a palindrome (5132332315).

The spelling of 3131121002 in words is "three billion, one hundred thirty-one million, one hundred twenty-one thousand, two".