21333202113 has 8 divisors (see below), whose sum is σ = 28549230976. Its totient is φ = 14169654000.

The previous prime is 21333202081. The next prime is 21333202117. The reversal of 21333202113 is 31120233312.

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

It is not a de Polignac number, because 21333202113 - 2⁵ = 21333202081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21333202113.

It is not an unprimeable number, because it can be changed into a prime (21333202117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13119238 + ... + 13120863.

It is an arithmetic number, because the mean of its divisors is an integer number (3568653872).

Almost surely, 2^21333202113 is an apocalyptic number.

It is an amenable number.

21333202113 is a deficient number, since it is larger than the sum of its proper divisors (7216028863).

21333202113 is a wasteful number, since it uses less digits than its factorization.

21333202113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26240375.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21333202113 its reverse (31120233312), we get a palindrome (52453435425).

It can be divided in two parts, 21333 and 202113, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 21333202113 in words is "twenty-one billion, three hundred thirty-three million, two hundred two thousand, one hundred thirteen".