21334203231331 has 16 divisors (see below), whose sum is σ = 22565771161600. Its totient is φ = 20113526210400.

The previous prime is 21334203231323. The next prime is 21334203231359. The reversal of 21334203231331 is 13313230243312.

It is a cyclic number.

It is not a de Polignac number, because 21334203231331 - 2³ = 21334203231323 is a prime.

It is a super-2 number, since 2×21334203231331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21334203231293 and 21334203231302.

It is not an unprimeable number, because it can be changed into a prime (21334203231371) 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 15 ways as a sum of consecutive naturals, for example, 40102366 + ... + 40630876.

It is an arithmetic number, because the mean of its divisors is an integer number (1410360697600).

Almost surely, 2^{21334203231331} is an apocalyptic number.

21334203231331 is a deficient number, since it is larger than the sum of its proper divisors (1231567930269).

21334203231331 is a wasteful number, since it uses less digits than its factorization.

21334203231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538810.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 21334203231331 its reverse (13313230243312), we get a palindrome (34647433474643).

The spelling of 21334203231331 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred three million, two hundred thirty-one thousand, three hundred thirty-one".