3121231002 has 32 divisors (see below), whose sum is σ = 6297177600. Its totient is φ = 1031326128.

The previous prime is 3121230967. The next prime is 3121231007. The reversal of 3121231002 is 2001321213.

It is not an unprimeable number, because it can be changed into a prime (3121231007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375649 + ... + 383867.

It is an arithmetic number, because the mean of its divisors is an integer number (196786800).

Almost surely, 2^3121231002 is an apocalyptic number.

3121231002 is an abundant number, since it is smaller than the sum of its proper divisors (3175946598).

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

3121231002 is a wasteful number, since it uses less digits than its factorization.

3121231002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3121231002 is about 55867.9783239021. The cubic root of 3121231002 is about 1461.4208664100.

Adding to 3121231002 its reverse (2001321213), we get a palindrome (5122552215).

The spelling of 3121231002 in words is "three billion, one hundred twenty-one million, two hundred thirty-one thousand, two".