20023120333321 has 4 divisors (see below), whose sum is σ = 22883566095232. Its totient is φ = 17162674571412.

The previous prime is 20023120333303. The next prime is 20023120333327. The reversal of 20023120333321 is 12333302132002.

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 20023120333321 - 2¹³ = 20023120325129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023120333327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430222880945 + ... + 1430222880958.

It is an arithmetic number, because the mean of its divisors is an integer number (5720891523808).

Almost surely, 2^{20023120333321} is an apocalyptic number.

It is an amenable number.

20023120333321 is a deficient number, since it is larger than the sum of its proper divisors (2860445761911).

20023120333321 is an equidigital number, since it uses as much as digits as its factorization.

20023120333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860445761910.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20023120333321 its reverse (12333302132002), we get a palindrome (32356422465323).

The spelling of 20023120333321 in words is "twenty trillion, twenty-three billion, one hundred twenty million, three hundred thirty-three thousand, three hundred twenty-one".