9813111112 has 32 divisors (see below), whose sum is σ = 21060673920. Its totient is φ = 4199103360.

The previous prime is 9813111071. The next prime is 9813111137. The reversal of 9813111112 is 2111113189.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 99189 + ... + 171652.

It is an arithmetic number, because the mean of its divisors is an integer number (658146060).

Almost surely, 2^9813111112 is an apocalyptic number.

It is an amenable number.

9813111112 is an abundant number, since it is smaller than the sum of its proper divisors (11247562808).

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

9813111112 is a wasteful number, since it uses less digits than its factorization.

9813111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271501 (or 271497 counting only the distinct ones).

The product of its digits is 432, while the sum is 28.

The square root of 9813111112 is about 99061.1483478765. The cubic root of 9813111112 is about 2140.9288709359.

The spelling of 9813111112 in words is "nine billion, eight hundred thirteen million, one hundred eleven thousand, one hundred twelve".