21303122300103 has 32 divisors (see below), whose sum is σ = 33279655772160. Its totient is φ = 11867018883840.

The previous prime is 21303122300101. The next prime is 21303122300167. The reversal of 21303122300103 is 30100322130312.

It is not a de Polignac number, because 21303122300103 - 2¹ = 21303122300101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 21303122300103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303122300101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8571300 + ... + 10773737.

It is an arithmetic number, because the mean of its divisors is an integer number (1039989242880).

Almost surely, 2^{21303122300103} is an apocalyptic number.

21303122300103 is a deficient number, since it is larger than the sum of its proper divisors (11976533472057).

21303122300103 is a wasteful number, since it uses less digits than its factorization.

21303122300103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19346367.

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

Adding to 21303122300103 its reverse (30100322130312), we get a palindrome (51403444430415).

The spelling of 21303122300103 in words is "twenty-one trillion, three hundred three billion, one hundred twenty-two million, three hundred thousand, one hundred three".