121112003 has 4 divisors (see below), whose sum is σ = 121374048. Its totient is φ = 120849960.

The previous prime is 121111999. The next prime is 121112011. The reversal of 121112003 is 300211121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121112003 - 2² = 121111999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121112083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130328 + ... + 131253.

It is an arithmetic number, because the mean of its divisors is an integer number (30343512).

Almost surely, 2^121112003 is an apocalyptic number.

121112003 is a deficient number, since it is larger than the sum of its proper divisors (262045).

121112003 is an equidigital number, since it uses as much as digits as its factorization.

121112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262044.

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

The square root of 121112003 is about 11005.0898678748. The cubic root of 121112003 is about 494.7613079037.

Adding to 121112003 its reverse (300211121), we get a palindrome (421323124).

The spelling of 121112003 in words is "one hundred twenty-one million, one hundred twelve thousand, three".