2311122439 has 2 divisors, whose sum is σ = 2311122440. Its totient is φ = 2311122438.

The previous prime is 2311122413. The next prime is 2311122469. The reversal of 2311122439 is 9342211132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311122439 - 2²³ = 2302733831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311122469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155561219 + 1155561220.

It is an arithmetic number, because the mean of its divisors is an integer number (1155561220).

Almost surely, 2^2311122439 is an apocalyptic number.

2311122439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311122439 is an equidigital number, since it uses as much as digits as its factorization.

2311122439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 2311122439 is about 48074.1348232082. The cubic root of 2311122439 is about 1322.1304819167.

It can be divided in two parts, 2311 and 122439, that added together give a triangular number (124750 = T₄₉₉).

The spelling of 2311122439 in words is "two billion, three hundred eleven million, one hundred twenty-two thousand, four hundred thirty-nine".