2311045361 has 2 divisors, whose sum is σ = 2311045362. Its totient is φ = 2311045360.

The previous prime is 2311045357. The next prime is 2311045369. The reversal of 2311045361 is 1635401132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2077536400 + 233508961 = 45580^2 + 15281^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311045361 - 2² = 2311045357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2311045361.

It is not a weakly prime, because it can be changed into another prime (2311045369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155522680 + 1155522681.

It is an arithmetic number, because the mean of its divisors is an integer number (1155522681).

Almost surely, 2^2311045361 is an apocalyptic number.

It is an amenable number.

2311045361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311045361 is an equidigital number, since it uses as much as digits as its factorization.

2311045361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2311045361 is about 48073.3331588314. Note that the first 3 decimals coincide. The cubic root of 2311045361 is about 1322.1157836754.

Adding to 2311045361 its reverse (1635401132), we get a palindrome (3946446493).

The spelling of 2311045361 in words is "two billion, three hundred eleven million, forty-five thousand, three hundred sixty-one".