12313204502178 has 64 divisors (see below), whose sum is σ = 25862984709120. Its totient is φ = 3900613434432.

The previous prime is 12313204502167. The next prime is 12313204502219. The reversal of 12313204502178 is 87120540231321.

It is a super-2 number, since 2×12313204502178² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456250801 + ... + 456277787.

It is an arithmetic number, because the mean of its divisors is an integer number (404109136080).

Almost surely, 2^{12313204502178} is an apocalyptic number.

12313204502178 is an abundant number, since it is smaller than the sum of its proper divisors (13549780206942).

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

12313204502178 is a wasteful number, since it uses less digits than its factorization.

12313204502178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48231.

The product of its (nonzero) digits is 80640, while the sum is 39.

Adding to 12313204502178 its reverse (87120540231321), we get a palindrome (99433744733499).

The spelling of 12313204502178 in words is "twelve trillion, three hundred thirteen billion, two hundred four million, five hundred two thousand, one hundred seventy-eight".