1111517117 has 2 divisors, whose sum is σ = 1111517118. Its totient is φ = 1111517116.

The previous prime is 1111517101. The next prime is 1111517129. The reversal of 1111517117 is 7117151111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 828806521 + 282710596 = 28789^2 + 16814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111517117 - 2⁴ = 1111517101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111517167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555758558 + 555758559.

It is an arithmetic number, because the mean of its divisors is an integer number (555758559).

Almost surely, 2^1111517117 is an apocalyptic number.

It is an amenable number.

1111517117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111517117 is an equidigital number, since it uses as much as digits as its factorization.

1111517117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 245, while the sum is 26.

The square root of 1111517117 is about 33339.4228654306. The cubic root of 1111517117 is about 1035.8703087580.

Adding to 1111517117 its reverse (7117151111), we get a palindrome (8228668228).

The spelling of 1111517117 in words is "one billion, one hundred eleven million, five hundred seventeen thousand, one hundred seventeen".