131330305525 has 24 divisors (see below), whose sum is σ = 168530820480. Its totient is φ = 101401755840.

The previous prime is 131330305501. The next prime is 131330305567. The reversal of 131330305525 is 525503033131.

It is not a de Polignac number, because 131330305525 - 2⁷ = 131330305397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1896664 + ... + 1964686.

It is an arithmetic number, because the mean of its divisors is an integer number (7022117520).

Almost surely, 2^131330305525 is an apocalyptic number.

It is an amenable number.

131330305525 is a deficient number, since it is larger than the sum of its proper divisors (37200514955).

131330305525 is a wasteful number, since it uses less digits than its factorization.

131330305525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70725 (or 70720 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 31.

Adding to 131330305525 its reverse (525503033131), we get a palindrome (656833338656).

The spelling of 131330305525 in words is "one hundred thirty-one billion, three hundred thirty million, three hundred five thousand, five hundred twenty-five".