2311330121 has 2 divisors, whose sum is σ = 2311330122. Its totient is φ = 2311330120.

The previous prime is 2311330103. The next prime is 2311330163. The reversal of 2311330121 is 1210331132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1635070096 + 676260025 = 40436^2 + 26005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311330121 - 2²⁶ = 2244221257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311330121.

It is not a weakly prime, because it can be changed into another prime (2311336121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155665060 + 1155665061.

It is an arithmetic number, because the mean of its divisors is an integer number (1155665061).

Almost surely, 2^2311330121 is an apocalyptic number.

It is an amenable number.

2311330121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311330121 is an equidigital number, since it uses as much as digits as its factorization.

2311330121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2311330121 is about 48076.2947927562. The cubic root of 2311330121 is about 1322.1700838108.

Adding to 2311330121 its reverse (1210331132), we get a palindrome (3521661253).

The spelling of 2311330121 in words is "two billion, three hundred eleven million, three hundred thirty thousand, one hundred twenty-one".