111420414 has 96 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 29949696.

The previous prime is 111420401. The next prime is 111420437. The reversal of 111420414 is 414024111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43744 + ... + 46220.

It is an arithmetic number, because the mean of its divisors is an integer number (3178035).

Almost surely, 2^111420414 is an apocalyptic number.

111420414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111420414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152545680).

111420414 is an abundant number, since it is smaller than the sum of its proper divisors (193670946).

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

111420414 is a wasteful number, since it uses less digits than its factorization.

111420414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519 (or 2506 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 111420414 is about 10555.5868619419. The cubic root of 111420414 is about 481.1955354341.

Adding to 111420414 its reverse (414024111), we get a palindrome (525444525).

It can be divided in two parts, 1114 and 20414, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 111420414 in words is "one hundred eleven million, four hundred twenty thousand, four hundred fourteen".