2303320121 has 4 divisors (see below), whose sum is σ = 2308252752. Its totient is φ = 2298387492.

The previous prime is 2303320111. The next prime is 2303320139. The reversal of 2303320121 is 1210233032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2303320121 is a prime.

It is a Duffinian number.

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 2303320121.

It is not an unprimeable number, because it can be changed into a prime (2303320111) 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 in 3 ways as a sum of consecutive naturals, for example, 2465615 + ... + 2466548.

It is an arithmetic number, because the mean of its divisors is an integer number (577063188).

Almost surely, 2^2303320121 is an apocalyptic number.

It is an amenable number.

2303320121 is a deficient number, since it is larger than the sum of its proper divisors (4932631).

2303320121 is an equidigital number, since it uses as much as digits as its factorization.

2303320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932630.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2303320121 is about 47992.9174045504. The cubic root of 2303320121 is about 1320.6409729464.

Adding to 2303320121 its reverse (1210233032), we get a palindrome (3513553153).

The spelling of 2303320121 in words is "two billion, three hundred three million, three hundred twenty thousand, one hundred twenty-one".