12510115231 has 16 divisors (see below), whose sum is σ = 12826598400. Its totient is φ = 12198539808.

The previous prime is 12510115229. The next prime is 12510115249. The reversal of 12510115231 is 13251101521.

It is a cyclic number.

It is not a de Polignac number, because 12510115231 - 2¹ = 12510115229 is a prime.

It is a super-2 number, since 2×12510115231² (a number of 21 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 (12510115271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2160366 + ... + 2166148.

It is an arithmetic number, because the mean of its divisors is an integer number (801662400).

Almost surely, 2^12510115231 is an apocalyptic number.

12510115231 is a deficient number, since it is larger than the sum of its proper divisors (316483169).

12510115231 is a wasteful number, since it uses less digits than its factorization.

12510115231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198.

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 12510115231 its reverse (13251101521), we get a palindrome (25761216752).

The spelling of 12510115231 in words is "twelve billion, five hundred ten million, one hundred fifteen thousand, two hundred thirty-one".