23323220231 has 4 divisors (see below), whose sum is σ = 23393683464. Its totient is φ = 23252757000.

The previous prime is 23323220213. The next prime is 23323220237. The reversal of 23323220231 is 13202232332.

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-23323220231 is a prime.

It is a super-2 number, since 2×23323220231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23323220197 and 23323220206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23323220237) 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, 35231120 + ... + 35231781.

It is an arithmetic number, because the mean of its divisors is an integer number (5848420866).

Almost surely, 2^23323220231 is an apocalyptic number.

23323220231 is a deficient number, since it is larger than the sum of its proper divisors (70463233).

23323220231 is an equidigital number, since it uses as much as digits as its factorization.

23323220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70463232.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23323220231 its reverse (13202232332), we get a palindrome (36525452563).

The spelling of 23323220231 in words is "twenty-three billion, three hundred twenty-three million, two hundred twenty thousand, two hundred thirty-one".