111331009452 has 96 divisors (see below), whose sum is σ = 285196972032. Its totient is φ = 33590059776.

The previous prime is 111331009441. The next prime is 111331009459. The reversal of 111331009452 is 254900133111.

It is not an unprimeable number, because it can be changed into a prime (111331009459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21882853 + ... + 21887939.

It is an arithmetic number, because the mean of its divisors is an integer number (2970801792).

Almost surely, 2^111331009452 is an apocalyptic number.

111331009452 is a gapful number since it is divisible by the number (12) 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 111331009452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142598486016).

111331009452 is an abundant number, since it is smaller than the sum of its proper divisors (173865962580).

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

111331009452 is a wasteful number, since it uses less digits than its factorization.

111331009452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807 (or 7805 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 111331009452 in words is "one hundred eleven billion, three hundred thirty-one million, nine thousand, four hundred fifty-two".