121003232003 has 4 divisors (see below), whose sum is σ = 121074706368. Its totient is φ = 120931757640.

The previous prime is 121003231991. The next prime is 121003232027. The reversal of 121003232003 is 300232300121.

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 121003232003 - 2¹⁰ = 121003230979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121003252003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35734643 + ... + 35738028.

It is an arithmetic number, because the mean of its divisors is an integer number (30268676592).

Almost surely, 2^121003232003 is an apocalyptic number.

121003232003 is a deficient number, since it is larger than the sum of its proper divisors (71474365).

121003232003 is an equidigital number, since it uses as much as digits as its factorization.

121003232003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71474364.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 121003232003 its reverse (300232300121), we get a palindrome (421235532124).

The spelling of 121003232003 in words is "one hundred twenty-one billion, three million, two hundred thirty-two thousand, three".