23122412321 has 2 divisors, whose sum is σ = 23122412322. Its totient is φ = 23122412320.

The previous prime is 23122412303. The next prime is 23122412329. The reversal of 23122412321 is 12321422132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21745631296 + 1376781025 = 147464^2 + 37105^2 .

It is a cyclic number.

It is not a de Polignac number, because 23122412321 - 2²² = 23118218017 is a prime.

It is not a weakly prime, because it can be changed into another prime (23122412329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561206160 + 11561206161.

It is an arithmetic number, because the mean of its divisors is an integer number (11561206161).

Almost surely, 2^23122412321 is an apocalyptic number.

It is an amenable number.

23122412321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23122412321 is an equidigital number, since it uses as much as digits as its factorization.

23122412321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

Adding to 23122412321 its reverse (12321422132), we get a palindrome (35443834453).

The spelling of 23122412321 in words is "twenty-three billion, one hundred twenty-two million, four hundred twelve thousand, three hundred twenty-one".