21300201232 has 20 divisors (see below), whose sum is σ = 41273252316. Its totient is φ = 10649039360.

The previous prime is 21300201229. The next prime is 21300201239. The reversal of 21300201232 is 23210200312.

It can be written as a sum of positive squares in 2 ways, for example, as 16130016016 + 5170185216 = 127004^2 + 71904^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (21300201239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114132 + ... + 235852.

Almost surely, 2^21300201232 is an apocalyptic number.

It is an amenable number.

21300201232 is a deficient number, since it is larger than the sum of its proper divisors (19973051084).

21300201232 is a wasteful number, since it uses less digits than its factorization.

21300201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132666 (or 132660 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21300201232 its reverse (23210200312), we get a palindrome (44510401544).

The spelling of 21300201232 in words is "twenty-one billion, three hundred million, two hundred one thousand, two hundred thirty-two".