21313202320333 has 64 divisors (see below), whose sum is σ = 28577562918912. Its totient is φ = 15385962977280.

The previous prime is 21313202320331. The next prime is 21313202320349. The reversal of 21313202320333 is 33302320231312.

It is not a de Polignac number, because 21313202320333 - 2¹ = 21313202320331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313202320331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47843460 + ... + 48286882.

It is an arithmetic number, because the mean of its divisors is an integer number (446524420608).

Almost surely, 2^{21313202320333} is an apocalyptic number.

It is an amenable number.

21313202320333 is a deficient number, since it is larger than the sum of its proper divisors (7264360598579).

21313202320333 is a wasteful number, since it uses less digits than its factorization.

21313202320333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444034.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 21313202320333 its reverse (33302320231312), we get a palindrome (54615522551645).

The spelling of 21313202320333 in words is "twenty-one trillion, three hundred thirteen billion, two hundred two million, three hundred twenty thousand, three hundred thirty-three".