112003121 has 4 divisors (see below), whose sum is σ = 112167792. Its totient is φ = 111838452.

The previous prime is 112003109. The next prime is 112003147. The reversal of 112003121 is 121300211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121300211 = 137 ⋅885403.

It is a cyclic number.

It is not a de Polignac number, because 112003121 - 2¹⁴ = 111986737 is a prime.

It is a super-2 number, since 2×112003121² = 25089398227481282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112003421) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 81311 + ... + 82676.

It is an arithmetic number, because the mean of its divisors is an integer number (28041948).

Almost surely, 2^112003121 is an apocalyptic number.

It is an amenable number.

112003121 is a deficient number, since it is larger than the sum of its proper divisors (164671).

112003121 is an equidigital number, since it uses as much as digits as its factorization.

112003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164670.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 112003121 is about 10583.1526966212. The cubic root of 112003121 is about 482.0329302066.

Adding to 112003121 its reverse (121300211), we get a palindrome (233303332).

The spelling of 112003121 in words is "one hundred twelve million, three thousand, one hundred twenty-one".