20210013023 has 2 divisors, whose sum is σ = 20210013024. Its totient is φ = 20210013022.

The previous prime is 20210013017. The next prime is 20210013073. The reversal of 20210013023 is 32031001202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210013023 - 2⁴ = 20210013007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20210012989 and 20210013007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210013013) 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, 10105006511 + 10105006512.

It is an arithmetic number, because the mean of its divisors is an integer number (10105006512).

Almost surely, 2^20210013023 is an apocalyptic number.

20210013023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210013023 is an equidigital number, since it uses as much as digits as its factorization.

20210013023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20210013023 its reverse (32031001202), we get a palindrome (52241014225).

The spelling of 20210013023 in words is "twenty billion, two hundred ten million, thirteen thousand, twenty-three".