2303212321 has 2 divisors, whose sum is σ = 2303212322. Its totient is φ = 2303212320.

The previous prime is 2303212291. The next prime is 2303212339. The reversal of 2303212321 is 1232123032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1940843025 + 362369296 = 44055^2 + 19036^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303212321 - 2⁷ = 2303212193 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (2303212421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151606160 + 1151606161.

It is an arithmetic number, because the mean of its divisors is an integer number (1151606161).

Almost surely, 2^2303212321 is an apocalyptic number.

It is an amenable number.

2303212321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303212321 is an equidigital number, since it uses as much as digits as its factorization.

2303212321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2303212321 is about 47991.7943090275. The cubic root of 2303212321 is about 1320.6203697431.

Adding to 2303212321 its reverse (1232123032), we get a palindrome (3535335353).

It can be divided in two parts, 23032 and 12321, that added together give a palindrome (35353).

The spelling of 2303212321 in words is "two billion, three hundred three million, two hundred twelve thousand, three hundred twenty-one".