7440243211 has 2 divisors, whose sum is σ = 7440243212. Its totient is φ = 7440243210.

The previous prime is 7440243199. The next prime is 7440243221. The reversal of 7440243211 is 1123420447.

It is a strong prime.

It is an emirp because it is prime and its reverse (1123420447) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7440243211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7440243211.

It is not a weakly prime, because it can be changed into another prime (7440243221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3720121605 + 3720121606.

It is an arithmetic number, because the mean of its divisors is an integer number (3720121606).

Almost surely, 2^7440243211 is an apocalyptic number.

7440243211 is a deficient number, since it is larger than the sum of its proper divisors (1).

7440243211 is an equidigital number, since it uses as much as digits as its factorization.

7440243211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 7440243211 is about 86256.8444298770. The cubic root of 7440243211 is about 1952.2212873507.

Adding to 7440243211 its reverse (1123420447), we get a palindrome (8563663658).

The spelling of 7440243211 in words is "seven billion, four hundred forty million, two hundred forty-three thousand, two hundred eleven".