13431004401 has 4 divisors (see below), whose sum is σ = 17908005872. Its totient is φ = 8954002932.

The previous prime is 13431004387. The next prime is 13431004421. The reversal of 13431004401 is 10440013431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13431004401 - 2⁷ = 13431004273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13431004421) 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, 2238500731 + ... + 2238500736.

It is an arithmetic number, because the mean of its divisors is an integer number (4477001468).

Almost surely, 2^13431004401 is an apocalyptic number.

It is an amenable number.

13431004401 is a deficient number, since it is larger than the sum of its proper divisors (4477001471).

13431004401 is an equidigital number, since it uses as much as digits as its factorization.

13431004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477001470.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13431004401 its reverse (10440013431), we get a palindrome (23871017832).

The spelling of 13431004401 in words is "thirteen billion, four hundred thirty-one million, four thousand, four hundred one".