2243431121 has 4 divisors (see below), whose sum is σ = 2243698752. Its totient is φ = 2243163492.

The previous prime is 2243431111. The next prime is 2243431123. The reversal of 2243431121 is 1211343422.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243431121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243431123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120821 + ... + 138146.

It is an arithmetic number, because the mean of its divisors is an integer number (560924688).

Almost surely, 2^2243431121 is an apocalyptic number.

It is an amenable number.

2243431121 is a deficient number, since it is larger than the sum of its proper divisors (267631).

2243431121 is an equidigital number, since it uses as much as digits as its factorization.

2243431121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267630.

The product of its digits is 1152, while the sum is 23.

The square root of 2243431121 is about 47364.8722261551. The cubic root of 2243431121 is about 1309.0942442353.

Adding to 2243431121 its reverse (1211343422), we get a palindrome (3454774543).

The spelling of 2243431121 in words is "two billion, two hundred forty-three million, four hundred thirty-one thousand, one hundred twenty-one".