12513441115431 has 10 divisors (see below), whose sum is σ = 18692918209592. Its totient is φ = 8342294076900.

The previous prime is 12513441115429. The next prime is 12513441115459. The reversal of 12513441115431 is 13451114431521.

12513441115431 is a `hidden beast` number, since 1 + 25 + 13 + 441 + 1 + 154 + 31 = 666.

12513441115431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12513441115431 - 2¹ = 12513441115429 is a prime.

It is a super-2 number, since 2×12513441115431² (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 (12513442115431) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77243463595 + ... + 77243463756.

Almost surely, 2^{12513441115431} is an apocalyptic number.

12513441115431 is a deficient number, since it is larger than the sum of its proper divisors (6179477094161).

12513441115431 is an equidigital number, since it uses as much as digits as its factorization.

12513441115431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154486927363 (or 154486927354 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

Adding to 12513441115431 its reverse (13451114431521), we get a palindrome (25964555546952).

The spelling of 12513441115431 in words is "twelve trillion, five hundred thirteen billion, four hundred forty-one million, one hundred fifteen thousand, four hundred thirty-one".