121203103323 has 8 divisors (see below), whose sum is σ = 162595574848. Its totient is φ = 80306350344.

The previous prime is 121203103309. The next prime is 121203103327. The reversal of 121203103323 is 323301302121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121203103323 - 2¹⁰ = 121203102299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121203103323.

It is not an unprimeable number, because it can be changed into a prime (121203103327) 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 7 ways as a sum of consecutive naturals, for example, 123929065 + ... + 123930042.

It is an arithmetic number, because the mean of its divisors is an integer number (20324446856).

Almost surely, 2^121203103323 is an apocalyptic number.

121203103323 is a deficient number, since it is larger than the sum of its proper divisors (41392471525).

121203103323 is a wasteful number, since it uses less digits than its factorization.

121203103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247859273.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 121203103323 its reverse (323301302121), we get a palindrome (444504405444).

The spelling of 121203103323 in words is "one hundred twenty-one billion, two hundred three million, one hundred three thousand, three hundred twenty-three".