112003021 has 32 divisors (see below), whose sum is σ = 134120448. Its totient is φ = 92559360.

The previous prime is 112003019. The next prime is 112003037. The reversal of 112003021 is 120300211.

It is a cyclic number.

It is not a de Polignac number, because 112003021 - 2¹ = 112003019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112002989 and 112003007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112003051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425736 + ... + 425998.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^112003021 is an apocalyptic number.

It is an amenable number.

112003021 is a deficient number, since it is larger than the sum of its proper divisors (22117427).

112003021 is a wasteful number, since it uses less digits than its factorization.

112003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 112003021 is about 10583.1479721300. The cubic root of 112003021 is about 482.0327867483.

Adding to 112003021 its reverse (120300211), we get a palindrome (232303232).

The spelling of 112003021 in words is "one hundred twelve million, three thousand, twenty-one".