21300335353 has 8 divisors (see below), whose sum is σ = 23237786880. Its totient is φ = 19363060080.

The previous prime is 21300335341. The next prime is 21300335369. The reversal of 21300335353 is 35353300312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21300335353 - 2²⁹ = 20763464441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21300305353) 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, 437643 + ... + 483871.

It is an arithmetic number, because the mean of its divisors is an integer number (2904723360).

Almost surely, 2^21300335353 is an apocalyptic number.

It is an amenable number.

21300335353 is a deficient number, since it is larger than the sum of its proper divisors (1937451527).

21300335353 is a wasteful number, since it uses less digits than its factorization.

21300335353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88127.

The product of its (nonzero) digits is 12150, while the sum is 28.

Adding to 21300335353 its reverse (35353300312), we get a palindrome (56653635665).

It can be divided in two parts, 21300 and 335353, that added together give a palindrome (356653).

The spelling of 21300335353 in words is "twenty-one billion, three hundred million, three hundred thirty-five thousand, three hundred fifty-three".