13432315251 has 4 divisors (see below), whose sum is σ = 17909753672. Its totient is φ = 8954876832.

The previous prime is 13432315243. The next prime is 13432315279. The reversal of 13432315251 is 15251323431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13432315251 - 2³ = 13432315243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13432315151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2238719206 + ... + 2238719211.

It is an arithmetic number, because the mean of its divisors is an integer number (4477438418).

Almost surely, 2^13432315251 is an apocalyptic number.

13432315251 is a deficient number, since it is larger than the sum of its proper divisors (4477438421).

13432315251 is an equidigital number, since it uses as much as digits as its factorization.

13432315251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477438420.

The product of its digits is 10800, while the sum is 30.

Adding to 13432315251 its reverse (15251323431), we get a palindrome (28683638682).

The spelling of 13432315251 in words is "thirteen billion, four hundred thirty-two million, three hundred fifteen thousand, two hundred fifty-one".