13251323431 has 8 divisors (see below), whose sum is σ = 13830616800. Its totient is φ = 12672292512.

The previous prime is 13251323429. The next prime is 13251323453. The reversal of 13251323431 is 13432315231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13251323431 - 2¹ = 13251323429 is a prime.

It is a super-2 number, since 2×13251323431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13251323431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13251323411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41301 + ... + 167953.

It is an arithmetic number, because the mean of its divisors is an integer number (1728827100).

Almost surely, 2^13251323431 is an apocalyptic number.

13251323431 is a deficient number, since it is larger than the sum of its proper divisors (579293369).

13251323431 is a wasteful number, since it uses less digits than its factorization.

13251323431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131225.

The product of its digits is 6480, while the sum is 28.

Adding to 13251323431 its reverse (13432315231), we get a palindrome (26683638662).

The spelling of 13251323431 in words is "thirteen billion, two hundred fifty-one million, three hundred twenty-three thousand, four hundred thirty-one".