2313222231 has 4 divisors (see below), whose sum is σ = 3084296312. Its totient is φ = 1542148152.

The previous prime is 2313222199. The next prime is 2313222251. The reversal of 2313222231 is 1322223132.

It is a happy number.

2313222231 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2313222231 - 2⁵ = 2313222199 is a prime.

It is a super-2 number, since 2×2313222231² = 10701994179985234722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2313222198 and 2313222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313222251) 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, 385537036 + ... + 385537041.

It is an arithmetic number, because the mean of its divisors is an integer number (771074078).

Almost surely, 2^2313222231 is an apocalyptic number.

2313222231 is a deficient number, since it is larger than the sum of its proper divisors (771074081).

2313222231 is an equidigital number, since it uses as much as digits as its factorization.

2313222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771074080.

The product of its digits is 864, while the sum is 21.

The square root of 2313222231 is about 48095.9689683034. The cubic root of 2313222231 is about 1322.5307720681.

Adding to 2313222231 its reverse (1322223132), we get a palindrome (3635445363).

Subtracting from 2313222231 its reverse (1322223132), we obtain a palindrome (990999099).

The spelling of 2313222231 in words is "two billion, three hundred thirteen million, two hundred twenty-two thousand, two hundred thirty-one".