21304033303233 has 8 divisors (see below), whose sum is σ = 28405837477600. Its totient is φ = 14202458998848.

The previous prime is 21304033303127. The next prime is 21304033303249. The reversal of 21304033303233 is 33230333040312.

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

It is not a de Polignac number, because 21304033303233 - 2²⁹ = 21303496432321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21304033303233.

It is not an unprimeable number, because it can be changed into a prime (21304033303253) 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, 57251128 + ... + 57622041.

It is an arithmetic number, because the mean of its divisors is an integer number (3550729684700).

Almost surely, 2^{21304033303233} is an apocalyptic number.

It is an amenable number.

21304033303233 is a deficient number, since it is larger than the sum of its proper divisors (7101804174367).

21304033303233 is a wasteful number, since it uses less digits than its factorization.

21304033303233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114934991.

The product of its (nonzero) digits is 34992, while the sum is 30.

Adding to 21304033303233 its reverse (33230333040312), we get a palindrome (54534366343545).

The spelling of 21304033303233 in words is "twenty-one trillion, three hundred four billion, thirty-three million, three hundred three thousand, two hundred thirty-three".