2243121243 has 16 divisors (see below), whose sum is σ = 3265775616. Its totient is φ = 1358195040.

The previous prime is 2243121233. The next prime is 2243121269. The reversal of 2243121243 is 3421213422.

It is a happy number.

It is not a de Polignac number, because 2243121243 - 2⁵ = 2243121211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2243121233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4605 + ... + 67137.

It is an arithmetic number, because the mean of its divisors is an integer number (204110976).

Almost surely, 2^2243121243 is an apocalyptic number.

2243121243 is a deficient number, since it is larger than the sum of its proper divisors (1022654373).

2243121243 is a wasteful number, since it uses less digits than its factorization.

2243121243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63634.

The product of its digits is 2304, while the sum is 24.

The square root of 2243121243 is about 47361.6009336678. The cubic root of 2243121243 is about 1309.0339677862.

Adding to 2243121243 its reverse (3421213422), we get a palindrome (5664334665).

The spelling of 2243121243 in words is "two billion, two hundred forty-three million, one hundred twenty-one thousand, two hundred forty-three".