1112323421 has 16 divisors (see below), whose sum is σ = 1231953408. Its totient is φ = 995857200.

The previous prime is 1112323393. The next prime is 1112323423. The reversal of 1112323421 is 1243232111.

It is a cyclic number.

It is not a de Polignac number, because 1112323421 - 2¹⁸ = 1112061277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112323393 and 1112323402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112323423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315056 + ... + 318566.

It is an arithmetic number, because the mean of its divisors is an integer number (76997088).

Almost surely, 2^1112323421 is an apocalyptic number.

1112323421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112323421 is a deficient number, since it is larger than the sum of its proper divisors (119629987).

1112323421 is a wasteful number, since it uses less digits than its factorization.

1112323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952.

The product of its digits is 288, while the sum is 20.

The square root of 1112323421 is about 33351.5130241493. The cubic root of 1112323421 is about 1036.1207246031.

Adding to 1112323421 its reverse (1243232111), we get a palindrome (2355555532).

The spelling of 1112323421 in words is "one billion, one hundred twelve million, three hundred twenty-three thousand, four hundred twenty-one".