20220023 has 2 divisors, whose sum is σ = 20220024. Its totient is φ = 20220022.

The previous prime is 20220007. The next prime is 20220041. The reversal of 20220023 is 32002202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20220023 - 2⁴ = 20220007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20219986 and 20220013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110011 + 10110012.

It is an arithmetic number, because the mean of its divisors is an integer number (10110012).

Almost surely, 2^20220023 is an apocalyptic number.

20220023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220023 is an equidigital number, since it uses as much as digits as its factorization.

20220023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20220023 is about 4496.6679886334. The cubic root of 20220023 is about 272.4335241713.

Adding to 20220023 its reverse (32002202), we get a palindrome (52222225).

The spelling of 20220023 in words is "twenty million, two hundred twenty thousand, twenty-three".