3121615346612 has 24 divisors (see below), whose sum is σ = 6243362954304. Its totient is φ = 1337806806912.

The previous prime is 3121615346609. The next prime is 3121615346627. The reversal of 3121615346612 is 2166435161213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121615346612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192428 + ... + 2506044.

It is an arithmetic number, because the mean of its divisors is an integer number (260140123096).

Almost surely, 2^{3121615346612} is an apocalyptic number.

It is an amenable number.

3121615346612 is an abundant number, since it is smaller than the sum of its proper divisors (3121747607692).

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

3121615346612 is a wasteful number, since it uses less digits than its factorization.

3121615346612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361815 (or 2361813 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The spelling of 3121615346612 in words is "three trillion, one hundred twenty-one billion, six hundred fifteen million, three hundred forty-six thousand, six hundred twelve".