20332303311 has 4 divisors (see below), whose sum is σ = 27109737752. Its totient is φ = 13554868872.

The previous prime is 20332303249. The next prime is 20332303367. The reversal of 20332303311 is 11330323302.

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

It is not a de Polignac number, because 20332303311 - 2⁷ = 20332303183 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 (20332303111) 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, 3388717216 + ... + 3388717221.

It is an arithmetic number, because the mean of its divisors is an integer number (6777434438).

Almost surely, 2^20332303311 is an apocalyptic number.

20332303311 is a deficient number, since it is larger than the sum of its proper divisors (6777434441).

20332303311 is an equidigital number, since it uses as much as digits as its factorization.

20332303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777434440.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20332303311 its reverse (11330323302), we get a palindrome (31662626613).

The spelling of 20332303311 in words is "twenty billion, three hundred thirty-two million, three hundred three thousand, three hundred eleven".