210020111023 has 2 divisors, whose sum is σ = 210020111024. Its totient is φ = 210020111022.

The previous prime is 210020110991. The next prime is 210020111027. The reversal of 210020111023 is 320111020012.

210020111023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210020111023 - 2⁵ = 210020110991 is a prime.

It is a super-2 number, since 2×210020111023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210020110994 and 210020111012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210020111027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010055511 + 105010055512.

It is an arithmetic number, because the mean of its divisors is an integer number (105010055512).

Almost surely, 2^210020111023 is an apocalyptic number.

210020111023 is a deficient number, since it is larger than the sum of its proper divisors (1).

210020111023 is an equidigital number, since it uses as much as digits as its factorization.

210020111023 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 13.

Adding to 210020111023 its reverse (320111020012), we get a palindrome (530131131035).

The spelling of 210020111023 in words is "two hundred ten billion, twenty million, one hundred eleven thousand, twenty-three".