23033032021 has 2 divisors, whose sum is σ = 23033032022. Its totient is φ = 23033032020.

The previous prime is 23033032003. The next prime is 23033032031. The reversal of 23033032021 is 12023033032.

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., 16699100625 + 6333931396 = 129225^2 + 79586^2 .

It is a cyclic number.

It is not a de Polignac number, because 23033032021 - 2¹¹ = 23033029973 is a prime.

It is a super-2 number, since 2×23033032021² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23033032021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23033032031) 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, 11516516010 + 11516516011.

It is an arithmetic number, because the mean of its divisors is an integer number (11516516011).

Almost surely, 2^23033032021 is an apocalyptic number.

It is an amenable number.

23033032021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23033032021 is an equidigital number, since it uses as much as digits as its factorization.

23033032021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23033032021 its reverse (12023033032), we get a palindrome (35056065053).

The spelling of 23033032021 in words is "twenty-three billion, thirty-three million, thirty-two thousand, twenty-one".