111421340 has 12 divisors (see below), whose sum is σ = 233984856. Its totient is φ = 44568528.

The previous prime is 111421267. The next prime is 111421351. The reversal of 111421340 is 43124111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2785514 + ... + 2785553.

It is an arithmetic number, because the mean of its divisors is an integer number (19498738).

Almost surely, 2^111421340 is an apocalyptic number.

111421340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111421340 is an abundant number, since it is smaller than the sum of its proper divisors (122563516).

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

111421340 is a wasteful number, since it uses less digits than its factorization.

111421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571076 (or 5571074 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 111421340 is about 10555.6307248785. The cubic root of 111421340 is about 481.1968684808.

Adding to 111421340 its reverse (43124111), we get a palindrome (154545451).

The spelling of 111421340 in words is "one hundred eleven million, four hundred twenty-one thousand, three hundred forty".