21333002121103 has 8 divisors (see below), whose sum is σ = 21594760243056. Its totient is φ = 21071356713600.

The previous prime is 21333002121047. The next prime is 21333002121173. The reversal of 21333002121103 is 30112120033312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21333002121103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333002121173) 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, 27797728 + ... + 28554853.

It is an arithmetic number, because the mean of its divisors is an integer number (2699345030382).

Almost surely, 2^{21333002121103} is an apocalyptic number.

21333002121103 is a deficient number, since it is larger than the sum of its proper divisors (261758121953).

21333002121103 is an equidigital number, since it uses as much as digits as its factorization.

21333002121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56357225.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21333002121103 its reverse (30112120033312), we get a palindrome (51445122154415).

The spelling of 21333002121103 in words is "twenty-one trillion, three hundred thirty-three billion, two million, one hundred twenty-one thousand, one hundred three".