20330031201323 has 4 divisors (see below), whose sum is σ = 20330288814768. Its totient is φ = 20329773587880.

The previous prime is 20330031201257. The next prime is 20330031201397. The reversal of 20330031201323 is 32310213003302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20330031201323 - 2⁴⁰ = 19230519573547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330031206323) 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, 128688311 + ... + 128846192.

It is an arithmetic number, because the mean of its divisors is an integer number (5082572203692).

Almost surely, 2^{20330031201323} is an apocalyptic number.

20330031201323 is a deficient number, since it is larger than the sum of its proper divisors (257613445).

20330031201323 is an equidigital number, since it uses as much as digits as its factorization.

20330031201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257613444.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20330031201323 its reverse (32310213003302), we get a palindrome (52640244204625).

The spelling of 20330031201323 in words is "twenty trillion, three hundred thirty billion, thirty-one million, two hundred one thousand, three hundred twenty-three".