121123310003 has 4 divisors (see below), whose sum is σ = 121248051768. Its totient is φ = 120998568240.

The previous prime is 121123309991. The next prime is 121123310039. The reversal of 121123310003 is 300013321121.

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 121123310003 - 2¹² = 121123305907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121123310093) 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, 62369426 + ... + 62371367.

It is an arithmetic number, because the mean of its divisors is an integer number (30312012942).

Almost surely, 2^121123310003 is an apocalyptic number.

121123310003 is a deficient number, since it is larger than the sum of its proper divisors (124741765).

121123310003 is an equidigital number, since it uses as much as digits as its factorization.

121123310003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124741764.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121123310003 its reverse (300013321121), we get a palindrome (421136631124).

The spelling of 121123310003 in words is "one hundred twenty-one billion, one hundred twenty-three million, three hundred ten thousand, three".