22011331323 has 4 divisors (see below), whose sum is σ = 29348441768. Its totient is φ = 14674220880.

The previous prime is 22011331301. The next prime is 22011331327. The reversal of 22011331323 is 32313311022.

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

It is not a de Polignac number, because 22011331323 - 2⁵ = 22011331291 is a prime.

It is a super-2 number, since 2×22011331323² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011331323.

It is not an unprimeable number, because it can be changed into a prime (22011331327) 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, 3668555218 + ... + 3668555223.

It is an arithmetic number, because the mean of its divisors is an integer number (7337110442).

Almost surely, 2^22011331323 is an apocalyptic number.

22011331323 is a deficient number, since it is larger than the sum of its proper divisors (7337110445).

22011331323 is an equidigital number, since it uses as much as digits as its factorization.

22011331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337110444.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 22011331323 its reverse (32313311022), we get a palindrome (54324642345).

The spelling of 22011331323 in words is "twenty-two billion, eleven million, three hundred thirty-one thousand, three hundred twenty-three".