23302021 has 2 divisors, whose sum is σ = 23302022. Its totient is φ = 23302020.

The previous prime is 23302009. The next prime is 23302031. The reversal of 23302021 is 12020332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18062500 + 5239521 = 4250^2 + 2289^2 .

It is a cyclic number.

It is not a de Polignac number, because 23302021 - 2⁷ = 23301893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23301992 and 23302010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23302031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11651010 + 11651011.

It is an arithmetic number, because the mean of its divisors is an integer number (11651011).

Almost surely, 2^23302021 is an apocalyptic number.

It is an amenable number.

23302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23302021 is an equidigital number, since it uses as much as digits as its factorization.

23302021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23302021 is about 4827.2166928780. The cubic root of 23302021 is about 285.6260823329.

Adding to 23302021 its reverse (12020332), we get a palindrome (35322353).

The spelling of 23302021 in words is "twenty-three million, three hundred two thousand, twenty-one".