3115204215321 has 16 divisors (see below), whose sum is σ = 4536493460928. Its totient is φ = 1885799500800.

The previous prime is 3115204215317. The next prime is 3115204215349. The reversal of 3115204215321 is 1235124025113.

It is a happy number.

It is not a de Polignac number, because 3115204215321 - 2² = 3115204215317 is a prime.

It is a super-2 number, since 2×3115204215321² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3115204215421) 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, 55047640 + ... + 55104201.

It is an arithmetic number, because the mean of its divisors is an integer number (283530841308).

Almost surely, 2^{3115204215321} is an apocalyptic number.

It is an amenable number.

3115204215321 is a deficient number, since it is larger than the sum of its proper divisors (1421289245607).

3115204215321 is a wasteful number, since it uses less digits than its factorization.

3115204215321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110152712.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 3115204215321 in words is "three trillion, one hundred fifteen billion, two hundred four million, two hundred fifteen thousand, three hundred twenty-one".