21100303332103 has 8 divisors (see below), whose sum is σ = 22210972110000. Its totient is φ = 19989647203968.

The previous prime is 21100303332049. The next prime is 21100303332187. The reversal of 21100303332103 is 30123330300112.

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-21100303332103 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 (21100303339103) 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, 362175 + ... + 6506287.

It is an arithmetic number, because the mean of its divisors is an integer number (2776371513750).

Almost surely, 2^{21100303332103} is an apocalyptic number.

21100303332103 is a deficient number, since it is larger than the sum of its proper divisors (1110668777897).

21100303332103 is a wasteful number, since it uses less digits than its factorization.

21100303332103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6324881.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21100303332103 its reverse (30123330300112), we get a palindrome (51223633632215).

The spelling of 21100303332103 in words is "twenty-one trillion, one hundred billion, three hundred three million, three hundred thirty-two thousand, one hundred three".