2243121423 has 32 divisors (see below), whose sum is σ = 3207859200. Its totient is φ = 1389273600.

The previous prime is 2243121421. The next prime is 2243121449. The reversal of 2243121423 is 3241213422.

It is a happy number.

It is not a de Polignac number, because 2243121423 - 2¹ = 2243121421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2243121393 and 2243121402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243121421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3085086 + ... + 3085812.

It is an arithmetic number, because the mean of its divisors is an integer number (100245600).

Almost surely, 2^2243121423 is an apocalyptic number.

2243121423 is a deficient number, since it is larger than the sum of its proper divisors (964737777).

2243121423 is a wasteful number, since it uses less digits than its factorization.

2243121423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447.

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

The square root of 2243121423 is about 47361.6028339413. The cubic root of 2243121423 is about 1309.0340028008.

Adding to 2243121423 its reverse (3241213422), we get a palindrome (5484334845).

The spelling of 2243121423 in words is "two billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred twenty-three".