1117801115 has 4 divisors (see below), whose sum is σ = 1341361344. Its totient is φ = 894240888.

The previous prime is 1117801093. The next prime is 1117801159. The reversal of 1117801115 is 5111087111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1117801115 - 2¹⁰ = 1117800091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111780107 + ... + 111780116.

It is an arithmetic number, because the mean of its divisors is an integer number (335340336).

Almost surely, 2^1117801115 is an apocalyptic number.

1117801115 is a deficient number, since it is larger than the sum of its proper divisors (223560229).

1117801115 is an equidigital number, since it uses as much as digits as its factorization.

1117801115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223560228.

The product of its (nonzero) digits is 280, while the sum is 26.

The square root of 1117801115 is about 33433.5327926918. The cubic root of 1117801115 is about 1037.8187502727.

Adding to 1117801115 its reverse (5111087111), we get a palindrome (6228888226).

The spelling of 1117801115 in words is "one billion, one hundred seventeen million, eight hundred one thousand, one hundred fifteen".