1113115117 has 2 divisors, whose sum is σ = 1113115118. Its totient is φ = 1113115116.

The previous prime is 1113115099. The next prime is 1113115123. The reversal of 1113115117 is 7115113111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 728406121 + 384708996 = 26989^2 + 19614^2 .

It is an emirp because it is prime and its reverse (7115113111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113115117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113115217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556557558 + 556557559.

It is an arithmetic number, because the mean of its divisors is an integer number (556557559).

Almost surely, 2^1113115117 is an apocalyptic number.

It is an amenable number.

1113115117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113115117 is an equidigital number, since it uses as much as digits as its factorization.

1113115117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105, while the sum is 22.

The square root of 1113115117 is about 33363.3798797424. The cubic root of 1113115117 is about 1036.3664858869.

Adding to 1113115117 its reverse (7115113111), we get a palindrome (8228228228).

The spelling of 1113115117 in words is "one billion, one hundred thirteen million, one hundred fifteen thousand, one hundred seventeen".