21336335315354 has 16 divisors (see below), whose sum is σ = 33907948861248. Its totient is φ = 10034457104832.

The previous prime is 21336335315353. The next prime is 21336335315359. The reversal of 21336335315354 is 45351353363312.

It is a junction number, because it is equal to n+sod(n) for n = 21336335315299 and 21336335315308.

It is not an unprimeable number, because it can be changed into a prime (21336335315353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192796334 + ... + 192906969.

It is an arithmetic number, because the mean of its divisors is an integer number (2119246803828).

Almost surely, 2^{21336335315354} is an apocalyptic number.

21336335315354 is a deficient number, since it is larger than the sum of its proper divisors (12571613545894).

21336335315354 is a wasteful number, since it uses less digits than its factorization.

21336335315354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385704949.

The product of its digits is 4374000, while the sum is 47.

Adding to 21336335315354 its reverse (45351353363312), we get a palindrome (66687688678666).

The spelling of 21336335315354 in words is "twenty-one trillion, three hundred thirty-six billion, three hundred thirty-five million, three hundred fifteen thousand, three hundred fifty-four".