2136116321 has 2 divisors, whose sum is σ = 2136116322. Its totient is φ = 2136116320.

The previous prime is 2136116309. The next prime is 2136116327. The reversal of 2136116321 is 1236116312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2040780625 + 95335696 = 45175^2 + 9764^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136116321 - 2¹⁴ = 2136099937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2136116327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068058160 + 1068058161.

It is an arithmetic number, because the mean of its divisors is an integer number (1068058161).

Almost surely, 2^2136116321 is an apocalyptic number.

It is an amenable number.

2136116321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136116321 is an equidigital number, since it uses as much as digits as its factorization.

2136116321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 2136116321 is about 46218.1384415253. The cubic root of 2136116321 is about 1287.8787164533.

Subtracting from 2136116321 its reverse (1236116312), we obtain a palindrome (900000009).

The spelling of 2136116321 in words is "two billion, one hundred thirty-six million, one hundred sixteen thousand, three hundred twenty-one".