3121000111002 has 16 divisors (see below), whose sum is σ = 6244626249792. Its totient is φ = 1039895699040.

The previous prime is 3121000110997. The next prime is 3121000111027. The reversal of 3121000111002 is 2001110001213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109402374 + ... + 109430897.

It is an arithmetic number, because the mean of its divisors is an integer number (390289140612).

Almost surely, 2^{3121000111002} is an apocalyptic number.

3121000111002 is an abundant number, since it is smaller than the sum of its proper divisors (3123626138790).

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

3121000111002 is a wasteful number, since it uses less digits than its factorization.

3121000111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218835653.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 3121000111002 its reverse (2001110001213), we get a palindrome (5122110112215).

The spelling of 3121000111002 in words is "three trillion, one hundred twenty-one billion, one hundred eleven thousand, two".