1011111117 has 8 divisors (see below), whose sum is σ = 1348924224. Its totient is φ = 673686048.

The previous prime is 1011111083. The next prime is 1011111133. The reversal of 1011111117 is 7111111101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011111117 - 2⁶ = 1011111053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011111096 and 1011111105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011111197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90873 + ... + 101390.

It is an arithmetic number, because the mean of its divisors is an integer number (168615528).

Almost surely, 2^1011111117 is an apocalyptic number.

It is an amenable number.

1011111117 is a deficient number, since it is larger than the sum of its proper divisors (337813107).

1011111117 is a wasteful number, since it uses less digits than its factorization.

1011111117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194019.

The product of its (nonzero) digits is 7, while the sum is 15.

The square root of 1011111117 is about 31797.9734731633. The cubic root of 1011111117 is about 1003.6900722844.

Adding to 1011111117 its reverse (7111111101), we get a palindrome (8122222218).

The spelling of 1011111117 in words is "one billion, eleven million, one hundred eleven thousand, one hundred seventeen".