2311143112009 has 2 divisors, whose sum is σ = 2311143112010. Its totient is φ = 2311143112008.

The previous prime is 2311143111931. The next prime is 2311143112039. The reversal of 2311143112009 is 9002113411132.

2311143112009 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 can be written as a sum of positive squares in only one way, i.e., 2270431172025 + 40711939984 = 1506795^2 + 201772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311143112009 - 2⁷ = 2311143111881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311143112039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155571556004 + 1155571556005.

It is an arithmetic number, because the mean of its divisors is an integer number (1155571556005).

Almost surely, 2^{2311143112009} is an apocalyptic number.

It is an amenable number.

2311143112009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311143112009 is an equidigital number, since it uses as much as digits as its factorization.

2311143112009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 2311143112009 in words is "two trillion, three hundred eleven billion, one hundred forty-three million, one hundred twelve thousand, nine".