2311122139 has 2 divisors, whose sum is σ = 2311122140. Its totient is φ = 2311122138.

The previous prime is 2311122127. The next prime is 2311122181. The reversal of 2311122139 is 9312211132.

2311122139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311122139 - 2¹⁹ = 2310597851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311122439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155561069 + 1155561070.

It is an arithmetic number, because the mean of its divisors is an integer number (1155561070).

Almost surely, 2^2311122139 is an apocalyptic number.

2311122139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311122139 is an equidigital number, since it uses as much as digits as its factorization.

2311122139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 2311122139 is about 48074.1317030271. The cubic root of 2311122139 is about 1322.1304247094.

The spelling of 2311122139 in words is "two billion, three hundred eleven million, one hundred twenty-two thousand, one hundred thirty-nine".