11144623423 has 4 divisors (see below), whose sum is σ = 11144970288. Its totient is φ = 11144276560.

The previous prime is 11144623397. The next prime is 11144623429. The reversal of 11144623423 is 32432644111.

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

It is a cyclic number.

It is not a de Polignac number, because 11144623423 - 2²¹ = 11142526271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144623429) 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, 119686 + ... + 191347.

It is an arithmetic number, because the mean of its divisors is an integer number (2786242572).

Almost surely, 2^11144623423 is an apocalyptic number.

11144623423 is a deficient number, since it is larger than the sum of its proper divisors (346865).

11144623423 is an equidigital number, since it uses as much as digits as its factorization.

11144623423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346864.

The product of its digits is 13824, while the sum is 31.

The spelling of 11144623423 in words is "eleven billion, one hundred forty-four million, six hundred twenty-three thousand, four hundred twenty-three".