11323021203 has 24 divisors (see below), whose sum is σ = 18220959120. Its totient is φ = 6727734720.

The previous prime is 11323021189. The next prime is 11323021211. The reversal of 11323021203 is 30212032311.

It is not a de Polignac number, because 11323021203 - 2⁹ = 11323020691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11323029203) 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 23 ways as a sum of consecutive naturals, for example, 1665193 + ... + 1671978.

It is an arithmetic number, because the mean of its divisors is an integer number (759206630).

Almost surely, 2^11323021203 is an apocalyptic number.

11323021203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11323021203 is a deficient number, since it is larger than the sum of its proper divisors (6897937917).

11323021203 is a wasteful number, since it uses less digits than its factorization.

11323021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337219 (or 3337216 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11323021203 its reverse (30212032311), we get a palindrome (41535053514).

The spelling of 11323021203 in words is "eleven billion, three hundred twenty-three million, twenty-one thousand, two hundred three".