21302011203 has 8 divisors (see below), whose sum is σ = 30984743616. Its totient is φ = 12910309800.

The previous prime is 21302011153. The next prime is 21302011231. The reversal of 21302011203 is 30211020312.

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

It is not a de Polignac number, because 21302011203 - 2¹³ = 21302003011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21302011403) 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, 322757713 + ... + 322757778.

It is an arithmetic number, because the mean of its divisors is an integer number (3873092952).

Almost surely, 2^21302011203 is an apocalyptic number.

21302011203 is a deficient number, since it is larger than the sum of its proper divisors (9682732413).

21302011203 is a wasteful number, since it uses less digits than its factorization.

21302011203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645515505.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21302011203 its reverse (30211020312), we get a palindrome (51513031515).

The spelling of 21302011203 in words is "twenty-one billion, three hundred two million, eleven thousand, two hundred three".