111031320 has 64 divisors (see below), whose sum is σ = 336428640. Its totient is φ = 29312000.

The previous prime is 111031313. The next prime is 111031363. The reversal of 111031320 is 23130111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111031296 and 111031305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7540 + ... + 16700.

Almost surely, 2^111031320 is an apocalyptic number.

111031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111031320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168214320).

111031320 is an abundant number, since it is smaller than the sum of its proper divisors (225397320).

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

111031320 is a wasteful number, since it uses less digits than its factorization.

111031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276 (or 9272 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 111031320 is about 10537.1400294387. The cubic root of 111031320 is about 480.6347505157.

Adding to 111031320 its reverse (23130111), we get a palindrome (134161431).

The spelling of 111031320 in words is "one hundred eleven million, thirty-one thousand, three hundred twenty".