1121313247 has 2 divisors, whose sum is σ = 1121313248. Its totient is φ = 1121313246.

The previous prime is 1121313229. The next prime is 1121313269. The reversal of 1121313247 is 7423131211.

It is a weak prime.

It is an emirp because it is prime and its reverse (7423131211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121313247 - 2⁷ = 1121313119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121313547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656623 + 560656624.

It is an arithmetic number, because the mean of its divisors is an integer number (560656624).

Almost surely, 2^1121313247 is an apocalyptic number.

1121313247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121313247 is an equidigital number, since it uses as much as digits as its factorization.

1121313247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 1121313247 is about 33486.0156931218. The cubic root of 1121313247 is about 1038.9045563130.

Adding to 1121313247 its reverse (7423131211), we get a palindrome (8544444458).

The spelling of 1121313247 in words is "one billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred forty-seven".