2313111222 has 32 divisors (see below), whose sum is σ = 5442616800. Its totient is φ = 725681664.

The previous prime is 2313111209. The next prime is 2313111233. The reversal of 2313111222 is 2221113132.

2313111222 is a `hidden beast` number, since 231 + 311 + 122 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2313111195 and 2313111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1258947 + ... + 1260782.

It is an arithmetic number, because the mean of its divisors is an integer number (170081775).

Almost surely, 2^2313111222 is an apocalyptic number.

2313111222 is an abundant number, since it is smaller than the sum of its proper divisors (3129505578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2313111222 is a wasteful number, since it uses less digits than its factorization.

2313111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519757 (or 2519751 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2313111222 is about 48094.8149180346. The cubic root of 2313111222 is about 1322.5096161288.

Adding to 2313111222 its reverse (2221113132), we get a palindrome (4534224354).

The spelling of 2313111222 in words is "two billion, three hundred thirteen million, one hundred eleven thousand, two hundred twenty-two".