131237056503 has 24 divisors (see below), whose sum is σ = 218226666528. Its totient is φ = 74445207552.

The previous prime is 131237056469. The next prime is 131237056513. The reversal of 131237056503 is 305650732131.

131237056503 is a `hidden beast` number, since 1 + 3 + 1 + 23 + 70 + 565 + 0 + 3 = 666.

It is not a de Polignac number, because 131237056503 - 2²² = 131232862199 is a prime.

It is a super-2 number, since 2×131237056503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131237056513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7594026 + ... + 7611287.

It is an arithmetic number, because the mean of its divisors is an integer number (9092777772).

Almost surely, 2^131237056503 is an apocalyptic number.

131237056503 is a deficient number, since it is larger than the sum of its proper divisors (86989610025).

131237056503 is a wasteful number, since it uses less digits than its factorization.

131237056503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15205463 (or 15205460 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

Adding to 131237056503 its reverse (305650732131), we get a palindrome (436887788634).

The spelling of 131237056503 in words is "one hundred thirty-one billion, two hundred thirty-seven million, fifty-six thousand, five hundred three".