2303222261 has 2 divisors, whose sum is σ = 2303222262. Its totient is φ = 2303222260.

The previous prime is 2303222249. The next prime is 2303222267. The reversal of 2303222261 is 1622223032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1207215025 + 1096007236 = 34745^2 + 33106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2303222261 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2303222267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151611130 + 1151611131.

It is an arithmetic number, because the mean of its divisors is an integer number (1151611131).

Almost surely, 2^2303222261 is an apocalyptic number.

It is an amenable number.

2303222261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303222261 is an equidigital number, since it uses as much as digits as its factorization.

2303222261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2303222261 is about 47991.8978682861. The cubic root of 2303222261 is about 1320.6222695459.

Adding to 2303222261 its reverse (1622223032), we get a palindrome (3925445293).

The spelling of 2303222261 in words is "two billion, three hundred three million, two hundred twenty-two thousand, two hundred sixty-one".