131320623155 has 32 divisors (see below), whose sum is σ = 167481388800. Its totient is φ = 98568662400.

The previous prime is 131320623149. The next prime is 131320623209. The reversal of 131320623155 is 551326023131.

It is not a de Polignac number, because 131320623155 - 2²⁶ = 131253514291 is a prime.

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, 6324140 + ... + 6344870.

It is an arithmetic number, because the mean of its divisors is an integer number (5233793400).

Almost surely, 2^131320623155 is an apocalyptic number.

131320623155 is a deficient number, since it is larger than the sum of its proper divisors (36160765645).

131320623155 is a wasteful number, since it uses less digits than its factorization.

131320623155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21395.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 131320623155 its reverse (551326023131), we get a palindrome (682646646286).

The spelling of 131320623155 in words is "one hundred thirty-one billion, three hundred twenty million, six hundred twenty-three thousand, one hundred fifty-five".