20023213203013 has 4 divisors (see below), whose sum is σ = 20669123306368. Its totient is φ = 19377303099660.

The previous prime is 20023213202969. The next prime is 20023213203017. The reversal of 20023213203013 is 31030231232002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20023213203013 - 2⁹ = 20023213202501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023213203017) 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 in 3 ways as a sum of consecutive naturals, for example, 322955051631 + ... + 322955051692.

It is an arithmetic number, because the mean of its divisors is an integer number (5167280826592).

Almost surely, 2^{20023213203013} is an apocalyptic number.

It is an amenable number.

20023213203013 is a deficient number, since it is larger than the sum of its proper divisors (645910103355).

20023213203013 is an equidigital number, since it uses as much as digits as its factorization.

20023213203013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645910103354.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20023213203013 its reverse (31030231232002), we get a palindrome (51053444435015).

The spelling of 20023213203013 in words is "twenty trillion, twenty-three billion, two hundred thirteen million, two hundred three thousand, thirteen".