2243113021 has 2 divisors, whose sum is σ = 2243113022. Its totient is φ = 2243113020.

The previous prime is 2243112997. The next prime is 2243113027. The reversal of 2243113021 is 1203113422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1128220921 + 1114892100 = 33589^2 + 33390^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243113021 - 2¹⁵ = 2243080253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2243113021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243113027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121556510 + 1121556511.

It is an arithmetic number, because the mean of its divisors is an integer number (1121556511).

Almost surely, 2^2243113021 is an apocalyptic number.

It is an amenable number.

2243113021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243113021 is an equidigital number, since it uses as much as digits as its factorization.

2243113021 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 2243113021 is about 47361.5141333129. The cubic root of 2243113021 is about 1309.0323683942.

Adding to 2243113021 its reverse (1203113422), we get a palindrome (3446226443).

The spelling of 2243113021 in words is "two billion, two hundred forty-three million, one hundred thirteen thousand, twenty-one".