131332555531 has 16 divisors (see below), whose sum is σ = 140103583200. Its totient is φ = 122678281728.

The previous prime is 131332555517. The next prime is 131332555537. The reversal of 131332555531 is 135555233131.

It is a cyclic number.

It is not a de Polignac number, because 131332555531 - 2¹⁷ = 131332424459 is a prime.

It is a super-2 number, since 2×131332555531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131332555537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9419041 + ... + 9432973.

It is an arithmetic number, because the mean of its divisors is an integer number (8756473950).

Almost surely, 2^131332555531 is an apocalyptic number.

131332555531 is a deficient number, since it is larger than the sum of its proper divisors (8771027669).

131332555531 is a wasteful number, since it uses less digits than its factorization.

131332555531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18078.

The product of its digits is 101250, while the sum is 37.

Adding to 131332555531 its reverse (135555233131), we get a palindrome (266887788662).

The spelling of 131332555531 in words is "one hundred thirty-one billion, three hundred thirty-two million, five hundred fifty-five thousand, five hundred thirty-one".