311122322223223 has 4 divisors (see below), whose sum is σ = 355568368255120. Its totient is φ = 266676276191328.

The previous prime is 311122322223179. The next prime is 311122322223283. The reversal of 311122322223223 is 322322223221113.

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 311122322223223 - 2²⁹ = 311121785352311 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 (311122322223283) 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, 22223023015938 + ... + 22223023015951.

It is an arithmetic number, because the mean of its divisors is an integer number (88892092063780).

Almost surely, 2^{311122322223223} is an apocalyptic number.

311122322223223 is a deficient number, since it is larger than the sum of its proper divisors (44446046031897).

311122322223223 is an equidigital number, since it uses as much as digits as its factorization.

311122322223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44446046031896.

The product of its digits is 20736, while the sum is 31.

Adding to 311122322223223 its reverse (322322223221113), we get a palindrome (633444545444336).

The spelling of 311122322223223 in words is "three hundred eleven trillion, one hundred twenty-two billion, three hundred twenty-two million, two hundred twenty-three thousand, two hundred twenty-three".