20331440013023 has 2 divisors, whose sum is σ = 20331440013024. Its totient is φ = 20331440013022.

The previous prime is 20331440012981. The next prime is 20331440013083. The reversal of 20331440013023 is 32031004413302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20331440013023 - 2¹⁰ = 20331440011999 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20331440012983 and 20331440013001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20331440013083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165720006511 + 10165720006512.

It is an arithmetic number, because the mean of its divisors is an integer number (10165720006512).

Almost surely, 2^{20331440013023} is an apocalyptic number.

20331440013023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331440013023 is an equidigital number, since it uses as much as digits as its factorization.

20331440013023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20331440013023 its reverse (32031004413302), we get a palindrome (52362444426325).

The spelling of 20331440013023 in words is "twenty trillion, three hundred thirty-one billion, four hundred forty million, thirteen thousand, twenty-three".