1117943117 has 2 divisors, whose sum is σ = 1117943118. Its totient is φ = 1117943116.

The previous prime is 1117943089. The next prime is 1117943159. The reversal of 1117943117 is 7113497111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790115881 + 327827236 = 28109^2 + 18106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117943117 - 2¹⁶ = 1117877581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117963117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558971558 + 558971559.

It is an arithmetic number, because the mean of its divisors is an integer number (558971559).

Almost surely, 2^1117943117 is an apocalyptic number.

It is an amenable number.

1117943117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117943117 is an equidigital number, since it uses as much as digits as its factorization.

1117943117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 35.

The square root of 1117943117 is about 33435.6563716043. The cubic root of 1117943117 is about 1037.8626955077.

The spelling of 1117943117 in words is "one billion, one hundred seventeen million, nine hundred forty-three thousand, one hundred seventeen".