911111112 has 32 divisors (see below), whose sum is σ = 2530864800. Its totient is φ = 303703632.

The previous prime is 911111101. The next prime is 911111129. The reversal of 911111112 is 211111119.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2108838 + ... + 2109269.

It is an arithmetic number, because the mean of its divisors is an integer number (79089525).

Almost surely, 2^911111112 is an apocalyptic number.

It is an amenable number.

911111112 is an abundant number, since it is smaller than the sum of its proper divisors (1619753688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

911111112 is a wasteful number, since it uses less digits than its factorization.

911111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218122 (or 4218112 counting only the distinct ones).

The product of its digits is 18, while the sum is 18.

The square root of 911111112 is about 30184.6171418489. The cubic root of 911111112 is about 969.4463528471.

The spelling of 911111112 in words is "nine hundred eleven million, one hundred eleven thousand, one hundred twelve".