3121021243002 has 64 divisors (see below), whose sum is σ = 6747496043904. Its totient is φ = 956706474240.

The previous prime is 3121021243001. The next prime is 3121021243037. The reversal of 3121021243002 is 2003421201213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121021243002.

It is not an unprimeable number, because it can be changed into a prime (3121021243001) 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, 25051288 + ... + 25175564.

It is an arithmetic number, because the mean of its divisors is an integer number (105429625686).

Almost surely, 2^{3121021243002} is an apocalyptic number.

3121021243002 is an abundant number, since it is smaller than the sum of its proper divisors (3626474800902).

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

3121021243002 is a wasteful number, since it uses less digits than its factorization.

3121021243002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125503.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 3121021243002 its reverse (2003421201213), we get a palindrome (5124442444215).

The spelling of 3121021243002 in words is "three trillion, one hundred twenty-one billion, twenty-one million, two hundred forty-three thousand, two".