13054431052531 has 16 divisors (see below), whose sum is σ = 14333812577280. Its totient is φ = 11790714741120.

The previous prime is 13054431052519. The next prime is 13054431052567. The reversal of 13054431052531 is 13525013445031.

It is a cyclic number.

It is not a de Polignac number, because 13054431052531 - 2²⁵ = 13054397498099 is a prime.

It is a super-2 number, since 2×13054431052531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13054431052591) 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, 4595535 + ... + 6872248.

It is an arithmetic number, because the mean of its divisors is an integer number (895863286080).

Almost surely, 2^{13054431052531} is an apocalyptic number.

13054431052531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13054431052531 is a deficient number, since it is larger than the sum of its proper divisors (1279381524749).

13054431052531 is a wasteful number, since it uses less digits than its factorization.

13054431052531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468466.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13054431052531 its reverse (13525013445031), we get a palindrome (26579444497562).

The spelling of 13054431052531 in words is "thirteen trillion, fifty-four billion, four hundred thirty-one million, fifty-two thousand, five hundred thirty-one".