111412240 has 40 divisors (see below), whose sum is σ = 260161920. Its totient is φ = 44370816.

The previous prime is 111412193. The next prime is 111412241. The reversal of 111412240 is 42214111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (111412241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16207 + ... + 22033.

It is an arithmetic number, because the mean of its divisors is an integer number (6504048).

Almost surely, 2^111412240 is an apocalyptic number.

111412240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111412240 is an abundant number, since it is smaller than the sum of its proper divisors (148749680).

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

111412240 is a wasteful number, since it uses less digits than its factorization.

111412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6079 (or 6073 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 111412240 is about 10555.1996665151. The cubic root of 111412240 is about 481.1837680259.

Adding to 111412240 its reverse (42214111), we get a palindrome (153626351).

The spelling of 111412240 in words is "one hundred eleven million, four hundred twelve thousand, two hundred forty".