111133731072 has 216 divisors, whose sum is σ = 370536450816. Its totient is φ = 29309865984.

The previous prime is 111133731011. The next prime is 111133731097. The reversal of 111133731072 is 270137331111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375633 + ... + 602799.

Almost surely, 2^111133731072 is an apocalyptic number.

111133731072 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 111133731072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185268225408).

111133731072 is an abundant number, since it is smaller than the sum of its proper divisors (259402719744).

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

111133731072 is a wasteful number, since it uses less digits than its factorization.

111133731072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227213 (or 227192 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 30.

The spelling of 111133731072 in words is "one hundred eleven billion, one hundred thirty-three million, seven hundred thirty-one thousand, seventy-two".