131372323617 has 32 divisors (see below), whose sum is σ = 180664383744. Its totient is φ = 84851712000.

The previous prime is 131372323609. The next prime is 131372323651. The reversal of 131372323617 is 716323273131.

It is not a de Polignac number, because 131372323617 - 2³ = 131372323609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131372323417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55266933 + ... + 55269309.

It is an arithmetic number, because the mean of its divisors is an integer number (5645761992).

Almost surely, 2^131372323617 is an apocalyptic number.

It is an amenable number.

131372323617 is a deficient number, since it is larger than the sum of its proper divisors (49292060127).

131372323617 is a wasteful number, since it uses less digits than its factorization.

131372323617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329.

The product of its digits is 95256, while the sum is 39.

Adding to 131372323617 its reverse (716323273131), we get a palindrome (847695596748).

The spelling of 131372323617 in words is "one hundred thirty-one billion, three hundred seventy-two million, three hundred twenty-three thousand, six hundred seventeen".