2304123121 has 2 divisors, whose sum is σ = 2304123122. Its totient is φ = 2304123120.

The previous prime is 2304123097. The next prime is 2304123149. The reversal of 2304123121 is 1213214032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2250174096 + 53949025 = 47436^2 + 7345^2 .

It is a cyclic number.

It is not a de Polignac number, because 2304123121 - 2¹³ = 2304114929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2304123181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152061560 + 1152061561.

It is an arithmetic number, because the mean of its divisors is an integer number (1152061561).

Almost surely, 2^2304123121 is an apocalyptic number.

It is an amenable number.

2304123121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2304123121 is an equidigital number, since it uses as much as digits as its factorization.

2304123121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2304123121 is about 48001.2824932834. The cubic root of 2304123121 is about 1320.7944255615.

Adding to 2304123121 its reverse (1213214032), we get a palindrome (3517337153).

The spelling of 2304123121 in words is "two billion, three hundred four million, one hundred twenty-three thousand, one hundred twenty-one".