111420106870800 has 720 divisors, whose sum is σ = 442296401694720. Its totient is φ = 23476385986560.

The previous prime is 111420106870711. The next prime is 111420106870817. The reversal of 111420106870800 is 8078601024111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1049031297 + ... + 1049137503.

Almost surely, 2^{111420106870800} is an apocalyptic number.

111420106870800 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 111420106870800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221148200847360).

111420106870800 is an abundant number, since it is smaller than the sum of its proper divisors (330876294823920).

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

111420106870800 is a wasteful number, since it uses less digits than its factorization.

111420106870800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107000 (or 106976 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 39.

Adding to 111420106870800 its reverse (8078601024111), we get a palindrome (119498707894911).

The spelling of 111420106870800 in words is "one hundred eleven trillion, four hundred twenty billion, one hundred six million, eight hundred seventy thousand, eight hundred".