21231310300 has 36 divisors (see below), whose sum is σ = 46204030600. Its totient is φ = 8468176320.

The previous prime is 21231310297. The next prime is 21231310307. The reversal of 21231310300 is 301313212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231310307) 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 11 ways as a sum of consecutive naturals, for example, 269274 + ... + 339073.

Almost surely, 2^21231310300 is an apocalyptic number.

21231310300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21231310300 is an abundant number, since it is smaller than the sum of its proper divisors (24972720300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21231310300 is a wasteful number, since it uses less digits than its factorization.

21231310300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608710 (or 608703 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21231310300 its reverse (301313212), we get a palindrome (21532623512).

The spelling of 21231310300 in words is "twenty-one billion, two hundred thirty-one million, three hundred ten thousand, three hundred".