2243121113 has 2 divisors, whose sum is σ = 2243121114. Its totient is φ = 2243121112.

The previous prime is 2243121091. The next prime is 2243121149. The reversal of 2243121113 is 3111213422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1489728409 + 753392704 = 38597^2 + 27448^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243121113 - 2⁸ = 2243120857 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243121163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121560556 + 1121560557.

It is an arithmetic number, because the mean of its divisors is an integer number (1121560557).

Almost surely, 2^2243121113 is an apocalyptic number.

It is an amenable number.

2243121113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243121113 is an equidigital number, since it uses as much as digits as its factorization.

2243121113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 2243121113 is about 47361.5995612479. The cubic root of 2243121113 is about 1309.0339424979.

Adding to 2243121113 its reverse (3111213422), we get a palindrome (5354334535).

The spelling of 2243121113 in words is "two billion, two hundred forty-three million, one hundred twenty-one thousand, one hundred thirteen".