320413123155 has 16 divisors (see below), whose sum is σ = 512884628640. Its totient is φ = 170812455168.

The previous prime is 320413123109. The next prime is 320413123241. The reversal of 320413123155 is 551321314023.

It is not a de Polignac number, because 320413123155 - 2³⁵ = 286053384787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4623450 + ... + 4692239.

It is an arithmetic number, because the mean of its divisors is an integer number (32055289290).

Almost surely, 2^320413123155 is an apocalyptic number.

320413123155 is a deficient number, since it is larger than the sum of its proper divisors (192471505485).

320413123155 is a wasteful number, since it uses less digits than its factorization.

320413123155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9317990.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 320413123155 its reverse (551321314023), we get a palindrome (871734437178).

The spelling of 320413123155 in words is "three hundred twenty billion, four hundred thirteen million, one hundred twenty-three thousand, one hundred fifty-five".