21334210303399 has 16 divisors (see below), whose sum is σ = 24394483846656. Its totient is φ = 18277071429600.

The previous prime is 21334210303361. The next prime is 21334210303433. The reversal of 21334210303399 is 99330301243312.

It is a cyclic number.

It is not a de Polignac number, because 21334210303399 - 2¹⁵ = 21334210270631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334210303309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112810629 + ... + 112999585.

It is an arithmetic number, because the mean of its divisors is an integer number (1524655240416).

Almost surely, 2^{21334210303399} is an apocalyptic number.

21334210303399 is a deficient number, since it is larger than the sum of its proper divisors (3060273543257).

21334210303399 is a wasteful number, since it uses less digits than its factorization.

21334210303399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197166.

The product of its (nonzero) digits is 314928, while the sum is 43.

The spelling of 21334210303399 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, three hundred three thousand, three hundred ninety-nine".