2311372109 has 2 divisors, whose sum is σ = 2311372110. Its totient is φ = 2311372108.

The previous prime is 2311372067. The next prime is 2311372117. The reversal of 2311372109 is 9012731132.

2311372109 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., 2308802500 + 2569609 = 48050^2 + 1603^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311372109 - 2¹⁶ = 2311306573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311372199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155686054 + 1155686055.

It is an arithmetic number, because the mean of its divisors is an integer number (1155686055).

Almost surely, 2^2311372109 is an apocalyptic number.

It is an amenable number.

2311372109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311372109 is an equidigital number, since it uses as much as digits as its factorization.

2311372109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 2311372109 is about 48076.7314716797. The cubic root of 2311372109 is about 1322.1780900148.

The spelling of 2311372109 in words is "two billion, three hundred eleven million, three hundred seventy-two thousand, one hundred nine".