2243121123 has 8 divisors (see below), whose sum is σ = 2991920128. Its totient is φ = 1494868104.

The previous prime is 2243121113. The next prime is 2243121149. The reversal of 2243121123 is 3211213422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2243121123 - 2⁵ = 2243121091 is a prime.

It is a super-2 number, since 2×2243121123² = 10063184744897562258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2243121123.

It is not an unprimeable number, because it can be changed into a prime (2243121113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126811 + ... + 143412.

It is an arithmetic number, because the mean of its divisors is an integer number (373990016).

Almost surely, 2^2243121123 is an apocalyptic number.

2243121123 is a deficient number, since it is larger than the sum of its proper divisors (748799005).

2243121123 is a wasteful number, since it uses less digits than its factorization.

2243121123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272993.

The product of its digits is 576, while the sum is 21.

The square root of 2243121123 is about 47361.5996668187. The cubic root of 2243121123 is about 1309.0339444431.

Adding to 2243121123 its reverse (3211213422), we get a palindrome (5454334545).

The spelling of 2243121123 in words is "two billion, two hundred forty-three million, one hundred twenty-one thousand, one hundred twenty-three".