23322401021 has 2 divisors, whose sum is σ = 23322401022. Its totient is φ = 23322401020.

The previous prime is 23322400999. The next prime is 23322401033. The reversal of 23322401021 is 12010422332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22539016900 + 783384121 = 150130^2 + 27989^2 .

It is a cyclic number.

It is not a de Polignac number, because 23322401021 - 2¹⁴ = 23322384637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23322400984 and 23322401002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23322401821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11661200510 + 11661200511.

It is an arithmetic number, because the mean of its divisors is an integer number (11661200511).

Almost surely, 2^23322401021 is an apocalyptic number.

It is an amenable number.

23322401021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23322401021 is an equidigital number, since it uses as much as digits as its factorization.

23322401021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23322401021 its reverse (12010422332), we get a palindrome (35332823353).

The spelling of 23322401021 in words is "twenty-three billion, three hundred twenty-two million, four hundred one thousand, twenty-one".