131523411612 has 48 divisors (see below), whose sum is σ = 312727588992. Its totient is φ = 43007165760.

The previous prime is 131523411589. The next prime is 131523411619. The reversal of 131523411612 is 216114325131.

It is a self number, because there is not a number n which added to its sum of digits gives 131523411612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131523411619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5474787 + ... + 5498757.

It is an arithmetic number, because the mean of its divisors is an integer number (6515158104).

Almost surely, 2^131523411612 is an apocalyptic number.

131523411612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131523411612 is an abundant number, since it is smaller than the sum of its proper divisors (181204177380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131523411612 is a wasteful number, since it uses less digits than its factorization.

131523411612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32658 (or 32656 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 131523411612 its reverse (216114325131), we get a palindrome (347637736743).

The spelling of 131523411612 in words is "one hundred thirty-one billion, five hundred twenty-three million, four hundred eleven thousand, six hundred twelve".