23044420040023 has 4 divisors (see below), whose sum is σ = 23259788451720. Its totient is φ = 22829051628328.

The previous prime is 23044420040011. The next prime is 23044420040063. The reversal of 23044420040023 is 32004002444032.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23044420040023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23044420039973 and 23044420040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23044420040063) 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, 107684205688 + ... + 107684205901.

It is an arithmetic number, because the mean of its divisors is an integer number (5814947112930).

Almost surely, 2^{23044420040023} is an apocalyptic number.

23044420040023 is a deficient number, since it is larger than the sum of its proper divisors (215368411697).

23044420040023 is a wasteful number, since it uses less digits than its factorization.

23044420040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215368411696.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 23044420040023 its reverse (32004002444032), we get a palindrome (55048422484055).

The spelling of 23044420040023 in words is "twenty-three trillion, forty-four billion, four hundred twenty million, forty thousand, twenty-three".