2231306243 has 2 divisors, whose sum is σ = 2231306244. Its totient is φ = 2231306242.

The previous prime is 2231306227. The next prime is 2231306263. The reversal of 2231306243 is 3426031322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231306243 - 2⁴ = 2231306227 is a prime.

It is a super-3 number, since 3×2231306243³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231306213) 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 as a sum of consecutive naturals, namely, 1115653121 + 1115653122.

It is an arithmetic number, because the mean of its divisors is an integer number (1115653122).

Almost surely, 2^2231306243 is an apocalyptic number.

2231306243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231306243 is an equidigital number, since it uses as much as digits as its factorization.

2231306243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 2231306243 is about 47236.7044045200. The cubic root of 2231306243 is about 1306.7315999319.

Adding to 2231306243 its reverse (3426031322), we get a palindrome (5657337565).

The spelling of 2231306243 in words is "two billion, two hundred thirty-one million, three hundred six thousand, two hundred forty-three".