111321444 has 24 divisors (see below), whose sum is σ = 279731200. Its totient is φ = 34252704.

The previous prime is 111321439. The next prime is 111321451. The reversal of 111321444 is 444123111.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 111321444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356644 + ... + 356955.

Almost surely, 2^111321444 is an apocalyptic number.

It is an amenable number.

111321444 is an abundant number, since it is smaller than the sum of its proper divisors (168409756).

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

111321444 is a wasteful number, since it uses less digits than its factorization.

111321444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713619 (or 713617 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 111321444 is about 10550.8977817056. The cubic root of 111321444 is about 481.0530180738.

Adding to 111321444 its reverse (444123111), we get a palindrome (555444555).

The spelling of 111321444 in words is "one hundred eleven million, three hundred twenty-one thousand, four hundred forty-four".