23020815211 has 2 divisors, whose sum is σ = 23020815212. Its totient is φ = 23020815210.

The previous prime is 23020815199. The next prime is 23020815221. The reversal of 23020815211 is 11251802032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23020815211 - 2⁵ = 23020815179 is a prime.

It is not a weakly prime, because it can be changed into another prime (23020815221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510407605 + 11510407606.

It is an arithmetic number, because the mean of its divisors is an integer number (11510407606).

Almost surely, 2^23020815211 is an apocalyptic number.

23020815211 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020815211 is an equidigital number, since it uses as much as digits as its factorization.

23020815211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 23020815211 in words is "twenty-three billion, twenty million, eight hundred fifteen thousand, two hundred eleven".