311122022223 has 16 divisors (see below), whose sum is σ = 422016120576. Its totient is φ = 203839970880.

The previous prime is 311122022221. The next prime is 311122022243. The reversal of 311122022223 is 322220221113.

It is not a de Polignac number, because 311122022223 - 2¹ = 311122022221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311122022223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311122022221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266665 + ... + 2400002.

It is an arithmetic number, because the mean of its divisors is an integer number (26376007536).

Almost surely, 2^311122022223 is an apocalyptic number.

311122022223 is a deficient number, since it is larger than the sum of its proper divisors (110894098353).

311122022223 is a wasteful number, since it uses less digits than its factorization.

311122022223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667054.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 311122022223 its reverse (322220221113), we get a palindrome (633342243336).

The spelling of 311122022223 in words is "three hundred eleven billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty-three".