23020511 has 2 divisors, whose sum is σ = 23020512. Its totient is φ = 23020510.

The previous prime is 23020489. The next prime is 23020573. The reversal of 23020511 is 11502032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23020511 - 2¹⁰ = 23019487 is a prime.

It is a super-2 number, since 2×23020511² = 1059887853402242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23020111) 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, 11510255 + 11510256.

It is an arithmetic number, because the mean of its divisors is an integer number (11510256).

Almost surely, 2^23020511 is an apocalyptic number.

23020511 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020511 is an equidigital number, since it uses as much as digits as its factorization.

23020511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 23020511 is about 4797.9694663472. The cubic root of 23020511 is about 284.4712099052.

Adding to 23020511 its reverse (11502032), we get a palindrome (34522543).

The spelling of 23020511 in words is "twenty-three million, twenty thousand, five hundred eleven".