111963120 has 80 divisors (see below), whose sum is σ = 353013120. Its totient is φ = 29347072.

The previous prime is 111963119. The next prime is 111963133. The reversal of 111963120 is 21369111.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 10207 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (4412664).

Almost surely, 2^111963120 is an apocalyptic number.

111963120 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 111963120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176506560).

111963120 is an abundant number, since it is smaller than the sum of its proper divisors (241050000).

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

111963120 is a wasteful number, since it uses less digits than its factorization.

111963120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982 (or 7976 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 111963120 is about 10581.2626845760. The cubic root of 111963120 is about 481.9755386655.

The spelling of 111963120 in words is "one hundred eleven million, nine hundred sixty-three thousand, one hundred twenty".