131525123315 has 4 divisors (see below), whose sum is σ = 157830147984. Its totient is φ = 105220098648.

The previous prime is 131525123293. The next prime is 131525123321. The reversal of 131525123315 is 513321525131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131525123315 - 2⁶ = 131525123251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13152512327 + ... + 13152512336.

It is an arithmetic number, because the mean of its divisors is an integer number (39457536996).

Almost surely, 2^131525123315 is an apocalyptic number.

131525123315 is a deficient number, since it is larger than the sum of its proper divisors (26305024669).

131525123315 is an equidigital number, since it uses as much as digits as its factorization.

131525123315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26305024668.

The product of its digits is 13500, while the sum is 32.

Adding to 131525123315 its reverse (513321525131), we get a palindrome (644846648446).

The spelling of 131525123315 in words is "one hundred thirty-one billion, five hundred twenty-five million, one hundred twenty-three thousand, three hundred fifteen".