21112232303 has 8 divisors (see below), whose sum is σ = 21422334576. Its totient is φ = 20804112000.

The previous prime is 21112232293. The next prime is 21112232327. The reversal of 21112232303 is 30323221112.

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

It is a cyclic number.

It is not a de Polignac number, because 21112232303 - 2²⁶ = 21045123439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112532303) 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 7 ways as a sum of consecutive naturals, for example, 474026 + ... + 516647.

It is an arithmetic number, because the mean of its divisors is an integer number (2677791822).

Almost surely, 2^21112232303 is an apocalyptic number.

21112232303 is a deficient number, since it is larger than the sum of its proper divisors (310102273).

21112232303 is a wasteful number, since it uses less digits than its factorization.

21112232303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990985.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21112232303 its reverse (30323221112), we get a palindrome (51435453415).

The spelling of 21112232303 in words is "twenty-one billion, one hundred twelve million, two hundred thirty-two thousand, three hundred three".