21020344302012 has 96 divisors (see below), whose sum is σ = 54951964704000. Its totient is φ = 6199839936000.

The previous prime is 21020344301993. The next prime is 21020344302077.

It is a happy number.

21020344302012 is nontrivially palindromic in base 10.

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, 12575137 + ... + 14148312.

It is an arithmetic number, because the mean of its divisors is an integer number (572416299000).

Almost surely, 2^{21020344302012} is an apocalyptic number.

21020344302012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21020344302012 is an abundant number, since it is smaller than the sum of its proper divisors (33931620401988).

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

21020344302012 is a wasteful number, since it uses less digits than its factorization.

21020344302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26723627 (or 26723625 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 2102034 and 4302012, that added together give a palindrome (6404046).

The spelling of 21020344302012 in words is "twenty-one trillion, twenty billion, three hundred forty-four million, three hundred two thousand, twelve".