121103032003 has 4 divisors (see below), whose sum is σ = 124376086960. Its totient is φ = 117829977048.

The previous prime is 121103031979. The next prime is 121103032013. The reversal of 121103032003 is 300230301121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300230301121 = 3907 ⋅76844203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121103032003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121103032013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636527423 + ... + 1636527496.

It is an arithmetic number, because the mean of its divisors is an integer number (31094021740).

Almost surely, 2^121103032003 is an apocalyptic number.

121103032003 is a deficient number, since it is larger than the sum of its proper divisors (3273054957).

121103032003 is an equidigital number, since it uses as much as digits as its factorization.

121103032003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273054956.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 121103032003 its reverse (300230301121), we get a palindrome (421333333124).

The spelling of 121103032003 in words is "one hundred twenty-one billion, one hundred three million, thirty-two thousand, three".