2243431273 has 2 divisors, whose sum is σ = 2243431274. Its totient is φ = 2243431272.

The previous prime is 2243431261. The next prime is 2243431313. The reversal of 2243431273 is 3721343422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2154166569 + 89264704 = 46413^2 + 9448^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243431273 - 2²⁵ = 2209876841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243131273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121715636 + 1121715637.

It is an arithmetic number, because the mean of its divisors is an integer number (1121715637).

Almost surely, 2^2243431273 is an apocalyptic number.

It is an amenable number.

2243431273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243431273 is an equidigital number, since it uses as much as digits as its factorization.

2243431273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 31.

The square root of 2243431273 is about 47364.8738307197. The cubic root of 2243431273 is about 1309.0942738005.

Adding to 2243431273 its reverse (3721343422), we get a palindrome (5964774695).

The spelling of 2243431273 in words is "two billion, two hundred forty-three million, four hundred thirty-one thousand, two hundred seventy-three".