131520411504 has 100 divisors (see below), whose sum is σ = 381875566336. Its totient is φ = 43699938048.

The previous prime is 131520411467. The next prime is 131520411521. The reversal of 131520411504 is 405114025131.

131520411504 is a `hidden beast` number, since 1 + 3 + 152 + 0 + 4 + 1 + 1 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 243537 + ... + 567759.

Almost surely, 2^131520411504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131520411504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190937783168).

131520411504 is an abundant number, since it is smaller than the sum of its proper divisors (250355154832).

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

131520411504 is a wasteful number, since it uses less digits than its factorization.

131520411504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324556 (or 324541 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 131520411504 its reverse (405114025131), we get a palindrome (536634436635).

The spelling of 131520411504 in words is "one hundred thirty-one billion, five hundred twenty million, four hundred eleven thousand, five hundred four".