131555523423 has 64 divisors (see below), whose sum is σ = 190787788800. Its totient is φ = 80359776000.

The previous prime is 131555523413. The next prime is 131555523427. The reversal of 131555523423 is 324325555131.

It is not a de Polignac number, because 131555523423 - 2⁹ = 131555522911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131555523427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 212528808 + ... + 212529426.

It is an arithmetic number, because the mean of its divisors is an integer number (2981059200).

Almost surely, 2^131555523423 is an apocalyptic number.

131555523423 is a deficient number, since it is larger than the sum of its proper divisors (59232265377).

131555523423 is a wasteful number, since it uses less digits than its factorization.

131555523423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its digits is 270000, while the sum is 39.

The spelling of 131555523423 in words is "one hundred thirty-one billion, five hundred fifty-five million, five hundred twenty-three thousand, four hundred twenty-three".