21112323332203 has 4 divisors (see below), whose sum is σ = 21128856084720. Its totient is φ = 21095790579688.

The previous prime is 21112323332189. The next prime is 21112323332249. The reversal of 21112323332203 is 30223332321112.

It is a happy number.

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 21112323332203 - 2⁵ = 21112323332171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21112323332273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8266374343 + ... + 8266376896.

It is an arithmetic number, because the mean of its divisors is an integer number (5282214021180).

Almost surely, 2^{21112323332203} is an apocalyptic number.

21112323332203 is a deficient number, since it is larger than the sum of its proper divisors (16532752517).

21112323332203 is a wasteful number, since it uses less digits than its factorization.

21112323332203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16532752516.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21112323332203 its reverse (30223332321112), we get a palindrome (51335655653315).

The spelling of 21112323332203 in words is "twenty-one trillion, one hundred twelve billion, three hundred twenty-three million, three hundred thirty-two thousand, two hundred three".