21301300302102 has 16 divisors (see below), whose sum is σ = 47336222893680. Its totient is φ = 7100433434016.

The previous prime is 21301300302101. The next prime is 21301300302109. The reversal of 21301300302102 is 20120300310312.

21301300302102 is a `hidden beast` number, since 2 + 130 + 130 + 0 + 302 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301300302101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197234262003 + ... + 197234262110.

It is an arithmetic number, because the mean of its divisors is an integer number (2958513930855).

Almost surely, 2^{21301300302102} is an apocalyptic number.

21301300302102 is an abundant number, since it is smaller than the sum of its proper divisors (26034922591578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301300302102 is a wasteful number, since it uses less digits than its factorization.

21301300302102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394468524124 (or 394468524118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21301300302102 its reverse (20120300310312), we get a palindrome (41421600612414).

The spelling of 21301300302102 in words is "twenty-one trillion, three hundred one billion, three hundred million, three hundred two thousand, one hundred two".