20223321311 has 4 divisors (see below), whose sum is σ = 20479312800. Its totient is φ = 19967329824.

The previous prime is 20223321301. The next prime is 20223321319. The reversal of 20223321311 is 11312332202.

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 20223321311 - 2²² = 20219127007 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 (20223321319) 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, 127995626 + ... + 127995783.

It is an arithmetic number, because the mean of its divisors is an integer number (5119828200).

Almost surely, 2^20223321311 is an apocalyptic number.

20223321311 is a deficient number, since it is larger than the sum of its proper divisors (255991489).

20223321311 is an equidigital number, since it uses as much as digits as its factorization.

20223321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255991488.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20223321311 its reverse (11312332202), we get a palindrome (31535653513).

The spelling of 20223321311 in words is "twenty billion, two hundred twenty-three million, three hundred twenty-one thousand, three hundred eleven".