20013311023 has 2 divisors, whose sum is σ = 20013311024. Its totient is φ = 20013311022.

The previous prime is 20013310981. The next prime is 20013311033. The reversal of 20013311023 is 32011331002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013311023 - 2¹³ = 20013302831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20013310988 and 20013311006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013311033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006655511 + 10006655512.

It is an arithmetic number, because the mean of its divisors is an integer number (10006655512).

Almost surely, 2^20013311023 is an apocalyptic number.

20013311023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013311023 is an equidigital number, since it uses as much as digits as its factorization.

20013311023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20013311023 its reverse (32011331002), we get a palindrome (52024642025).

The spelling of 20013311023 in words is "twenty billion, thirteen million, three hundred eleven thousand, twenty-three".