23020562321 has 2 divisors, whose sum is σ = 23020562322. Its totient is φ = 23020562320.

The previous prime is 23020562309. The next prime is 23020562329. The reversal of 23020562321 is 12326502032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19933204225 + 3087358096 = 141185^2 + 55564^2 .

It is a cyclic number.

It is not a de Polignac number, because 23020562321 - 2¹⁰ = 23020561297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23020562329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510281160 + 11510281161.

It is an arithmetic number, because the mean of its divisors is an integer number (11510281161).

Almost surely, 2^23020562321 is an apocalyptic number.

It is an amenable number.

23020562321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020562321 is an equidigital number, since it uses as much as digits as its factorization.

23020562321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The spelling of 23020562321 in words is "twenty-three billion, twenty million, five hundred sixty-two thousand, three hundred twenty-one".