2311322231 has 2 divisors, whose sum is σ = 2311322232. Its totient is φ = 2311322230.

The previous prime is 2311322177. The next prime is 2311322263. The reversal of 2311322231 is 1322231132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2311322231 - 2¹⁴ = 2311305847 is a prime.

It is a super-2 number, since 2×2311322231² = 10684420911029634722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311322281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155661115 + 1155661116.

It is an arithmetic number, because the mean of its divisors is an integer number (1155661116).

Almost surely, 2^2311322231 is an apocalyptic number.

2311322231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311322231 is an equidigital number, since it uses as much as digits as its factorization.

2311322231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 2311322231 is about 48076.2127356139. The cubic root of 2311322231 is about 1322.1685793476.

Adding to 2311322231 its reverse (1322231132), we get a palindrome (3633553363).

The spelling of 2311322231 in words is "two billion, three hundred eleven million, three hundred twenty-two thousand, two hundred thirty-one".