21303100003203 has 6 divisors (see below), whose sum is σ = 30771144449084. Its totient is φ = 14202066668796.

The previous prime is 21303100003153. The next prime is 21303100003223. The reversal of 21303100003203 is 30230000130312.

21303100003203 is a `hidden beast` number, since 2 + 1 + 30 + 310 + 0 + 0 + 0 + 320 + 3 = 666.

It is not a de Polignac number, because 21303100003203 - 2²⁸ = 21302831567747 is a prime.

It is a super-2 number, since 2×21303100003203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21303100003223) 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 5 ways as a sum of consecutive naturals, for example, 1183505555725 + ... + 1183505555742.

Almost surely, 2^{21303100003203} is an apocalyptic number.

21303100003203 is a deficient number, since it is larger than the sum of its proper divisors (9468044445881).

21303100003203 is a wasteful number, since it uses less digits than its factorization.

21303100003203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367011111473 (or 2367011111470 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21303100003203 its reverse (30230000130312), we get a palindrome (51533100133515).

The spelling of 21303100003203 in words is "twenty-one trillion, three hundred three billion, one hundred million, three thousand, two hundred three".