2331223331 has 2 divisors, whose sum is σ = 2331223332. Its totient is φ = 2331223330.

The previous prime is 2331223283. The next prime is 2331223333. The reversal of 2331223331 is 1333221332.

2331223331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2331223331 - 2²⁶ = 2264114467 is a prime.

It is a super-2 number, since 2×2331223331² = 10869204437997471122, which contains 22 as substring.

Together with 2331223333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2331223297 and 2331223306.

It is not a weakly prime, because it can be changed into another prime (2331223333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165611665 + 1165611666.

It is an arithmetic number, because the mean of its divisors is an integer number (1165611666).

Almost surely, 2^2331223331 is an apocalyptic number.

2331223331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331223331 is an equidigital number, since it uses as much as digits as its factorization.

2331223331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 23.

The square root of 2331223331 is about 48282.7436150847. The cubic root of 2331223331 is about 1325.9524811079.

Adding to 2331223331 its reverse (1333221332), we get a palindrome (3664444663).

The spelling of 2331223331 in words is "two billion, three hundred thirty-one million, two hundred twenty-three thousand, three hundred thirty-one".