21300012421303 has 24 divisors (see below), whose sum is σ = 27057909441024. Its totient is φ = 16580318756400.

The previous prime is 21300012421283. The next prime is 21300012421313. The reversal of 21300012421303 is 30312421000312.

It is not a de Polignac number, because 21300012421303 - 2³⁷ = 21162573467831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300012421313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19825575 + ... + 20872312.

It is an arithmetic number, because the mean of its divisors is an integer number (1127412893376).

Almost surely, 2^{21300012421303} is an apocalyptic number.

21300012421303 is a deficient number, since it is larger than the sum of its proper divisors (5757897019721).

21300012421303 is a wasteful number, since it uses less digits than its factorization.

21300012421303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40698883 (or 40698876 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21300012421303 its reverse (30312421000312), we get a palindrome (51612433421615).

The spelling of 21300012421303 in words is "twenty-one trillion, three hundred billion, twelve million, four hundred twenty-one thousand, three hundred three".