21330106253203 has 8 divisors (see below), whose sum is σ = 23271702826176. Its totient is φ = 19388925681000.

The previous prime is 21330106253177. The next prime is 21330106253213. The reversal of 21330106253203 is 30235260103312.

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 21330106253203 - 2¹³ = 21330106245011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21330106253213) 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, 103892973 + ... + 104098078.

It is an arithmetic number, because the mean of its divisors is an integer number (2908962853272).

Almost surely, 2^{21330106253203} is an apocalyptic number.

21330106253203 is a deficient number, since it is larger than the sum of its proper divisors (1941596572973).

21330106253203 is a wasteful number, since it uses less digits than its factorization.

21330106253203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208000385.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 21330106253203 its reverse (30235260103312), we get a palindrome (51565366356515).

The spelling of 21330106253203 in words is "twenty-one trillion, three hundred thirty billion, one hundred six million, two hundred fifty-three thousand, two hundred three".