23043223501 has 4 divisors (see below), whose sum is σ = 23071707900. Its totient is φ = 23014739104.

The previous prime is 23043223471. The next prime is 23043223537. The reversal of 23043223501 is 10532234032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16461146601 + 6582076900 = 128301^2 + 81130^2 .

It is a cyclic number.

It is not a de Polignac number, because 23043223501 - 2³³ = 14453288909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043223561) 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, 14240986 + ... + 14242603.

It is an arithmetic number, because the mean of its divisors is an integer number (5767926975).

Almost surely, 2^23043223501 is an apocalyptic number.

It is an amenable number.

23043223501 is a deficient number, since it is larger than the sum of its proper divisors (28484399).

23043223501 is an equidigital number, since it uses as much as digits as its factorization.

23043223501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28484398.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23043223501 its reverse (10532234032), we get a palindrome (33575457533).

The spelling of 23043223501 in words is "twenty-three billion, forty-three million, two hundred twenty-three thousand, five hundred one".