21364132300 has 72 divisors (see below), whose sum is σ = 54064421600. Its totient is φ = 7324833600.

The previous prime is 21364132289. The next prime is 21364132301. The reversal of 21364132300 is 323146312.

It is a super-2 number, since 2×21364132300² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (21364132301) 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 23 ways as a sum of consecutive naturals, for example, 277131 + ... + 345730.

Almost surely, 2^21364132300 is an apocalyptic number.

21364132300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21364132300 is an abundant number, since it is smaller than the sum of its proper divisors (32700289300).

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

21364132300 is a wasteful number, since it uses less digits than its factorization.

21364132300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622896 (or 622875 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21364132300 its reverse (323146312), we get a palindrome (21687278612).

It can be divided in two parts, 21364 and 132300, that added together give a square (153664 = 392²).

The spelling of 21364132300 in words is "twenty-one billion, three hundred sixty-four million, one hundred thirty-two thousand, three hundred".