2303144021 has 2 divisors, whose sum is σ = 2303144022. Its totient is φ = 2303144020.

The previous prime is 2303144017. The next prime is 2303144029. The reversal of 2303144021 is 1204413032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1508467921 + 794676100 = 38839^2 + 28190^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303144021 - 2² = 2303144017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2303143984 and 2303144002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2303144029) 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, 1151572010 + 1151572011.

It is an arithmetic number, because the mean of its divisors is an integer number (1151572011).

Almost surely, 2^2303144021 is an apocalyptic number.

It is an amenable number.

2303144021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303144021 is an equidigital number, since it uses as much as digits as its factorization.

2303144021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2303144021 is about 47991.0827237728. The cubic root of 2303144021 is about 1320.6073156184.

Adding to 2303144021 its reverse (1204413032), we get a palindrome (3507557053).

The spelling of 2303144021 in words is "two billion, three hundred three million, one hundred forty-four thousand, twenty-one".