111382912620 has 192 divisors, whose sum is σ = 396264960000. Its totient is φ = 25443728640.

The previous prime is 111382912559. The next prime is 111382912631. The reversal of 111382912620 is 26219283111.

111382912620 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 8 + 29 + 1 + 2 + 620 = 666.

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 63 ways as a sum of consecutive naturals, for example, 7064506 + ... + 7080254.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880000).

Almost surely, 2^111382912620 is an apocalyptic number.

111382912620 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 111382912620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198132480000).

111382912620 is an abundant number, since it is smaller than the sum of its proper divisors (284882047380).

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

111382912620 is a wasteful number, since it uses less digits than its factorization.

111382912620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17645 (or 17637 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 111382912620 in words is "one hundred eleven billion, three hundred eighty-two million, nine hundred twelve thousand, six hundred twenty".