1112345421 has 16 divisors (see below), whose sum is σ = 1633981248. Its totient is φ = 667472000.

The previous prime is 1112345401. The next prime is 1112345447. The reversal of 1112345421 is 1245432111.

It is a cyclic number.

It is not a de Polignac number, because 1112345421 - 2¹¹ = 1112343373 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1112345391 and 1112345400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112345401) 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, 163536 + ... + 170201.

It is an arithmetic number, because the mean of its divisors is an integer number (102123828).

Almost surely, 2^1112345421 is an apocalyptic number.

1112345421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112345421 is a deficient number, since it is larger than the sum of its proper divisors (521635827).

1112345421 is a wasteful number, since it uses less digits than its factorization.

1112345421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333852.

The product of its digits is 960, while the sum is 24.

The square root of 1112345421 is about 33351.8428426376. The cubic root of 1112345421 is about 1036.1275555018.

Adding to 1112345421 its reverse (1245432111), we get a palindrome (2357777532).

The spelling of 1112345421 in words is "one billion, one hundred twelve million, three hundred forty-five thousand, four hundred twenty-one".