23045021 has 2 divisors, whose sum is σ = 23045022. Its totient is φ = 23045020.

The previous prime is 23045017. The next prime is 23045041. The reversal of 23045021 is 12054032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 1792921 = 4610^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 23045021 - 2² = 23045017 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23045041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11522510 + 11522511.

It is an arithmetic number, because the mean of its divisors is an integer number (11522511).

Almost surely, 2^23045021 is an apocalyptic number.

It is an amenable number.

23045021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23045021 is an equidigital number, since it uses as much as digits as its factorization.

23045021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23045021 is about 4800.5229923416. The cubic root of 23045021 is about 284.5721331834.

Adding to 23045021 its reverse (12054032), we get a palindrome (35099053).

The spelling of 23045021 in words is "twenty-three million, forty-five thousand, twenty-one".