131572126431 has 12 divisors (see below), whose sum is σ = 190066256952. Its totient is φ = 87706614096.

The previous prime is 131572126423. The next prime is 131572126507. The reversal of 131572126431 is 134621275131.

131572126431 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 7 + 2 + 1 + 2 + 643 + 1 = 666.

It is not a de Polignac number, because 131572126431 - 2³ = 131572126423 is a prime.

It is a super-2 number, since 2×131572126431² (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 (131572126831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574836 + ... + 770441.

It is an arithmetic number, because the mean of its divisors is an integer number (15838854746).

Almost surely, 2^131572126431 is an apocalyptic number.

131572126431 is a deficient number, since it is larger than the sum of its proper divisors (58494130521).

131572126431 is a wasteful number, since it uses less digits than its factorization.

131572126431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356150 (or 1356147 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The spelling of 131572126431 in words is "one hundred thirty-one billion, five hundred seventy-two million, one hundred twenty-six thousand, four hundred thirty-one".