111487428000 has 1344 divisors, whose sum is σ = 471015391392. Its totient is φ = 25679462400.

The previous prime is 111487427999. The next prime is 111487428061. The reversal of 111487428000 is 824784111.

It can be written as a sum of positive squares in 16 ways, for example, as 46294416 + 111441133584 = 6804^2 + 333828^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 644435914 + ... + 644436086.

Almost surely, 2^111487428000 is an apocalyptic number.

111487428000 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 111487428000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235507695696).

111487428000 is an abundant number, since it is smaller than the sum of its proper divisors (359527963392).

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

111487428000 is a wasteful number, since it uses less digits than its factorization.

111487428000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The spelling of 111487428000 in words is "one hundred eleven billion, four hundred eighty-seven million, four hundred twenty-eight thousand".