21323033214 has 96 divisors (see below), whose sum is σ = 51556066560. Its totient is φ = 5758470144.

The previous prime is 21323033197. The next prime is 21323033219. The reversal of 21323033214 is 41233032312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323033219) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7928382 + ... + 7931070.

It is an arithmetic number, because the mean of its divisors is an integer number (537042360).

Almost surely, 2^21323033214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21323033214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25778033280).

21323033214 is an abundant number, since it is smaller than the sum of its proper divisors (30233033346).

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

21323033214 is a wasteful number, since it uses less digits than its factorization.

21323033214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21323033214 its reverse (41233032312), we get a palindrome (62556065526).

The spelling of 21323033214 in words is "twenty-one billion, three hundred twenty-three million, thirty-three thousand, two hundred fourteen".