23221202423 has 4 divisors (see below), whose sum is σ = 23341519728. Its totient is φ = 23100885120.

The previous prime is 23221202413. The next prime is 23221202441. The reversal of 23221202423 is 32420212232.

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 23221202423 - 2¹⁸ = 23220940279 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 (23221202413) 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, 60158363 + ... + 60158748.

It is an arithmetic number, because the mean of its divisors is an integer number (5835379932).

Almost surely, 2^23221202423 is an apocalyptic number.

23221202423 is a deficient number, since it is larger than the sum of its proper divisors (120317305).

23221202423 is a wasteful number, since it uses less digits than its factorization.

23221202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120317304.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23221202423 its reverse (32420212232), we get a palindrome (55641414655).

The spelling of 23221202423 in words is "twenty-three billion, two hundred twenty-one million, two hundred two thousand, four hundred twenty-three".