2243112321 has 4 divisors (see below), whose sum is σ = 2990816432. Its totient is φ = 1495408212.

The previous prime is 2243112307. The next prime is 2243112341. The reversal of 2243112321 is 1232113422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2243112321 - 2⁹ = 2243111809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243112341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373852051 + ... + 373852056.

It is an arithmetic number, because the mean of its divisors is an integer number (747704108).

Almost surely, 2^2243112321 is an apocalyptic number.

It is an amenable number.

2243112321 is a deficient number, since it is larger than the sum of its proper divisors (747704111).

2243112321 is an equidigital number, since it uses as much as digits as its factorization.

2243112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747704110.

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

The square root of 2243112321 is about 47361.5067433459. The cubic root of 2243112321 is about 1309.0322322259.

Adding to 2243112321 its reverse (1232113422), we get a palindrome (3475225743).

The spelling of 2243112321 in words is "two billion, two hundred forty-three million, one hundred twelve thousand, three hundred twenty-one".