111301421 has 16 divisors (see below), whose sum is σ = 140673408. Its totient is φ = 85536000.

The previous prime is 111301417. The next prime is 111301427. The reversal of 111301421 is 124103111.

It is not a de Polignac number, because 111301421 - 2² = 111301417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111301396 and 111301405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111301427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4280 + ... + 15521.

It is an arithmetic number, because the mean of its divisors is an integer number (8792088).

Almost surely, 2^111301421 is an apocalyptic number.

111301421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111301421 is a deficient number, since it is larger than the sum of its proper divisors (29371987).

111301421 is a wasteful number, since it uses less digits than its factorization.

111301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19892.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111301421 is about 10549.9488624353. The cubic root of 111301421 is about 481.0241745680.

Adding to 111301421 its reverse (124103111), we get a palindrome (235404532).

The spelling of 111301421 in words is "one hundred eleven million, three hundred one thousand, four hundred twenty-one".