20012010023 has 2 divisors, whose sum is σ = 20012010024. Its totient is φ = 20012010022.

The previous prime is 20012009959. The next prime is 20012010061. The reversal of 20012010023 is 32001021002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012010023 - 2⁶ = 20012009959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012009986 and 20012010013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012010523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006005011 + 10006005012.

It is an arithmetic number, because the mean of its divisors is an integer number (10006005012).

Almost surely, 2^20012010023 is an apocalyptic number.

20012010023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012010023 is an equidigital number, since it uses as much as digits as its factorization.

20012010023 is an evil number, because the sum of its binary digits is even.

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

Adding to 20012010023 its reverse (32001021002), we get a palindrome (52013031025).

The spelling of 20012010023 in words is "twenty billion, twelve million, ten thousand, twenty-three".