23401144344403 has 16 divisors (see below), whose sum is σ = 27607114756096. Its totient is φ = 19410922386720.

The previous prime is 23401144344349. The next prime is 23401144344443. The reversal of 23401144344403 is 30444344110432.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23401144344403 - 2³⁷ = 23263705390931 is a prime.

It is a super-2 number, since 2×23401144344403² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23401144344443) 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, 29663650 + ... + 30442312.

It is an arithmetic number, because the mean of its divisors is an integer number (1725444672256).

Almost surely, 2^{23401144344403} is an apocalyptic number.

23401144344403 is a deficient number, since it is larger than the sum of its proper divisors (4205970411693).

23401144344403 is a wasteful number, since it uses less digits than its factorization.

23401144344403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917194.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 23401144344403 its reverse (30444344110432), we get a palindrome (53845488454835).

The spelling of 23401144344403 in words is "twenty-three trillion, four hundred one billion, one hundred forty-four million, three hundred forty-four thousand, four hundred three".