21301231303330 has 16 divisors (see below), whose sum is σ = 41827872377664. Its totient is φ = 7745902292080.

The previous prime is 21301231303277. The next prime is 21301231303337. The reversal of 21301231303330 is 3330313210312.

It is a junction number, because it is equal to n+sod(n) for n = 21301231303295 and 21301231303304.

It is not an unprimeable number, because it can be changed into a prime (21301231303337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96823778542 + ... + 96823778761.

It is an arithmetic number, because the mean of its divisors is an integer number (2614242023604).

Almost surely, 2^{21301231303330} is an apocalyptic number.

21301231303330 is a deficient number, since it is larger than the sum of its proper divisors (20526641074334).

21301231303330 is a wasteful number, since it uses less digits than its factorization.

21301231303330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193647557321.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21301231303330 its reverse (3330313210312), we get a palindrome (24631544513642).

The spelling of 21301231303330 in words is "twenty-one trillion, three hundred one billion, two hundred thirty-one million, three hundred three thousand, three hundred thirty".