121324003 has 4 divisors (see below), whose sum is σ = 121353120. Its totient is φ = 121294888.

The previous prime is 121323991. The next prime is 121324031. The reversal of 121324003 is 300423121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300423121 = 353 ⋅851057.

It is a cyclic number.

It is not a de Polignac number, because 121324003 - 2²¹ = 119226851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121324033) 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, 7000 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (30338280).

Almost surely, 2^121324003 is an apocalyptic number.

121324003 is a deficient number, since it is larger than the sum of its proper divisors (29117).

121324003 is an equidigital number, since it uses as much as digits as its factorization.

121324003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29116.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 121324003 is about 11014.7175633332. The cubic root of 121324003 is about 495.0498239139.

Adding to 121324003 its reverse (300423121), we get a palindrome (421747124).

The spelling of 121324003 in words is "one hundred twenty-one million, three hundred twenty-four thousand, three".