21363233236312 has 64 divisors (see below), whose sum is σ = 46013280163200. Its totient is φ = 9196300823040.

The previous prime is 21363233236309. The next prime is 21363233236381.

21363233236312 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21363233236312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2638563 + ... + 7049005.

It is an arithmetic number, because the mean of its divisors is an integer number (718957502550).

Almost surely, 2^{21363233236312} is an apocalyptic number.

21363233236312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21363233236312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23006640081600).

21363233236312 is an abundant number, since it is smaller than the sum of its proper divisors (24650046926888).

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

21363233236312 is a wasteful number, since it uses less digits than its factorization.

21363233236312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413376 (or 4413372 counting only the distinct ones).

The product of its digits is 419904, while the sum is 40.

The spelling of 21363233236312 in words is "twenty-one trillion, three hundred sixty-three billion, two hundred thirty-three million, two hundred thirty-six thousand, three hundred twelve".