21330231021302 has 64 divisors (see below), whose sum is σ = 37400248516608. Its totient is φ = 8935059456000.

The previous prime is 21330231021289. The next prime is 21330231021329. The reversal of 21330231021302 is 20312013203312.

It is a super-2 number, since 2×21330231021302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88518902 + ... + 88759542.

It is an arithmetic number, because the mean of its divisors is an integer number (584378883072).

Almost surely, 2^{21330231021302} is an apocalyptic number.

21330231021302 is a deficient number, since it is larger than the sum of its proper divisors (16070017495306).

21330231021302 is a wasteful number, since it uses less digits than its factorization.

21330231021302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241365.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21330231021302 its reverse (20312013203312), we get a palindrome (41642244224614).

The spelling of 21330231021302 in words is "twenty-one trillion, three hundred thirty billion, two hundred thirty-one million, twenty-one thousand, three hundred two".