111421300 has 18 divisors (see below), whose sum is σ = 241784438. Its totient is φ = 44568480.

The previous prime is 111421267. The next prime is 111421351. The reversal of 111421300 is 3124111.

It can be written as a sum of positive squares in 3 ways, for example, as 9572836 + 101848464 = 3094^2 + 10092^2 .

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 5 ways as a sum of consecutive naturals, for example, 557007 + ... + 557206.

Almost surely, 2^111421300 is an apocalyptic number.

111421300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111421300 is an abundant number, since it is smaller than the sum of its proper divisors (130363138).

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

111421300 is a wasteful number, since it uses less digits than its factorization.

111421300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114227 (or 1114220 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111421300 is about 10555.6288301550. The cubic root of 111421300 is about 481.1968108979.

Adding to 111421300 its reverse (3124111), we get a palindrome (114545411).

The spelling of 111421300 in words is "one hundred eleven million, four hundred twenty-one thousand, three hundred".