21363436312 has 16 divisors (see below), whose sum is σ = 40812225840. Its totient is φ = 10480176096.

The previous prime is 21363436307. The next prime is 21363436313.

21363436312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21363436312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21363436313) 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, 25192308 + ... + 25193155.

It is an arithmetic number, because the mean of its divisors is an integer number (2550764115).

Almost surely, 2^21363436312 is an apocalyptic number.

It is an amenable number.

21363436312 is a deficient number, since it is larger than the sum of its proper divisors (19448789528).

21363436312 is a wasteful number, since it uses less digits than its factorization.

21363436312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50385522 (or 50385518 counting only the distinct ones).

The product of its digits is 46656, while the sum is 34.

The spelling of 21363436312 in words is "twenty-one billion, three hundred sixty-three million, four hundred thirty-six thousand, three hundred twelve".