20112023 has 2 divisors, whose sum is σ = 20112024. Its totient is φ = 20112022.

The previous prime is 20112007. The next prime is 20112031. The reversal of 20112023 is 32021102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112023 - 2⁴ = 20112007 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111995 and 20112013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056011 + 10056012.

It is an arithmetic number, because the mean of its divisors is an integer number (10056012).

Almost surely, 2^20112023 is an apocalyptic number.

20112023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112023 is an equidigital number, since it uses as much as digits as its factorization.

20112023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20112023 is about 4484.6430181231. The cubic root of 20112023 is about 271.9476137218.

Adding to 20112023 its reverse (32021102), we get a palindrome (52133125).

The spelling of 20112023 in words is "twenty million, one hundred twelve thousand, twenty-three".