121323002203 has 12 divisors (see below), whose sum is σ = 131676910680. Its totient is φ = 111731757696.

The previous prime is 121323002123. The next prime is 121323002219. The reversal of 121323002203 is 302200323121.

It is not a de Polignac number, because 121323002203 - 2²¹ = 121320905051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121323002503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 755793 + ... + 902146.

It is an arithmetic number, because the mean of its divisors is an integer number (10973075890).

Almost surely, 2^121323002203 is an apocalyptic number.

121323002203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121323002203 is a deficient number, since it is larger than the sum of its proper divisors (10353908477).

121323002203 is a wasteful number, since it uses less digits than its factorization.

121323002203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658398 (or 1658385 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 121323002203 its reverse (302200323121), we get a palindrome (423523325324).

The spelling of 121323002203 in words is "one hundred twenty-one billion, three hundred twenty-three million, two thousand, two hundred three".