15125633232431 has 16 divisors (see below), whose sum is σ = 16332877368000. Its totient is φ = 13964517143808.

The previous prime is 15125633232407. The next prime is 15125633232449. The reversal of 15125633232431 is 13423233652151.

It is a de Polignac number, because none of the positive numbers 2^k-15125633232431 is a prime.

It is a super-2 number, since 2×15125633232431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15125633232481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685096 + ... + 5752461.

It is an arithmetic number, because the mean of its divisors is an integer number (1020804835500).

Almost surely, 2^{15125633232431} is an apocalyptic number.

15125633232431 is a deficient number, since it is larger than the sum of its proper divisors (1207244135569).

15125633232431 is a wasteful number, since it uses less digits than its factorization.

15125633232431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440658.

The product of its digits is 388800, while the sum is 41.

Adding to 15125633232431 its reverse (13423233652151), we get a palindrome (28548866884582).

The spelling of 15125633232431 in words is "fifteen trillion, one hundred twenty-five billion, six hundred thirty-three million, two hundred thirty-two thousand, four hundred thirty-one".