13400044051323 has 4 divisors (see below), whose sum is σ = 17866725401768. Its totient is φ = 8933362700880.

The previous prime is 13400044051319. The next prime is 13400044051333. The reversal of 13400044051323 is 32315044000431.

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

It is not a de Polignac number, because 13400044051323 - 2² = 13400044051319 is a prime.

It is a super-2 number, since 2×13400044051323² (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 (13400044051333) 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, 2233340675218 + ... + 2233340675223.

It is an arithmetic number, because the mean of its divisors is an integer number (4466681350442).

Almost surely, 2^{13400044051323} is an apocalyptic number.

13400044051323 is a deficient number, since it is larger than the sum of its proper divisors (4466681350445).

13400044051323 is an equidigital number, since it uses as much as digits as its factorization.

13400044051323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4466681350444.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13400044051323 its reverse (32315044000431), we get a palindrome (45715088051754).

The spelling of 13400044051323 in words is "thirteen trillion, four hundred billion, forty-four million, fifty-one thousand, three hundred twenty-three".