15131312311425 has 48 divisors (see below), whose sum is σ = 26105396231040. Its totient is φ = 7718986851840.

The previous prime is 15131312311417. The next prime is 15131312311459. The reversal of 15131312311425 is 52411321313151.

It is not a de Polignac number, because 15131312311425 - 2³ = 15131312311417 is a prime.

It is a super-2 number, since 2×15131312311425² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113143197 + ... + 113276853.

It is an arithmetic number, because the mean of its divisors is an integer number (543862421480).

Almost surely, 2^{15131312311425} is an apocalyptic number.

15131312311425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15131312311425 is a deficient number, since it is larger than the sum of its proper divisors (10974083919615).

15131312311425 is a wasteful number, since it uses less digits than its factorization.

15131312311425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199322 (or 199317 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

Adding to 15131312311425 its reverse (52411321313151), we get a palindrome (67542633624576).

The spelling of 15131312311425 in words is "fifteen trillion, one hundred thirty-one billion, three hundred twelve million, three hundred eleven thousand, four hundred twenty-five".