131321366726 has 64 divisors (see below), whose sum is σ = 229737876480. Its totient is φ = 55637184000.

The previous prime is 131321366717. The next prime is 131321366767. The reversal of 131321366726 is 627663123131.

It is a congruent number.

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, 22403036 + ... + 22408896.

It is an arithmetic number, because the mean of its divisors is an integer number (3589654320).

Almost surely, 2^131321366726 is an apocalyptic number.

131321366726 is a deficient number, since it is larger than the sum of its proper divisors (98416509754).

131321366726 is a wasteful number, since it uses less digits than its factorization.

131321366726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461.

The product of its digits is 163296, while the sum is 41.

Adding to 131321366726 its reverse (627663123131), we get a palindrome (758984489857).

The spelling of 131321366726 in words is "one hundred thirty-one billion, three hundred twenty-one million, three hundred sixty-six thousand, seven hundred twenty-six".