111412020 has 48 divisors (see below), whose sum is σ = 314431488. Its totient is φ = 29473920.

The previous prime is 111411983. The next prime is 111412027. The reversal of 111412020 is 20214111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111411987 and 111412005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111412027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310 + ... + 14930.

It is an arithmetic number, because the mean of its divisors is an integer number (6550656).

Almost surely, 2^111412020 is an apocalyptic number.

111412020 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 111412020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157215744).

111412020 is an abundant number, since it is smaller than the sum of its proper divisors (203019468).

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

111412020 is a wasteful number, since it uses less digits than its factorization.

111412020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14760 (or 14758 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111412020 is about 10555.1892451059. The cubic root of 111412020 is about 481.1834513027.

Adding to 111412020 its reverse (20214111), we get a palindrome (131626131).

The spelling of 111412020 in words is "one hundred eleven million, four hundred twelve thousand, twenty".