21020313201012 has 96 divisors (see below), whose sum is σ = 54651137520000. Its totient is φ = 6986994723072.

The previous prime is 21020313201011. The next prime is 21020313201029. The reversal of 21020313201012 is 21010231302012.

21020313201012 is a `hidden beast` number, since 210 + 2 + 0 + 31 + 320 + 101 + 2 = 666.

21020313201012 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 (21020313201011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55230664 + ... + 55609952.

It is an arithmetic number, because the mean of its divisors is an integer number (569282682500).

Almost surely, 2^{21020313201012} is an apocalyptic number.

It is an amenable number.

21020313201012 is an abundant number, since it is smaller than the sum of its proper divisors (33630824318988).

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

21020313201012 is a wasteful number, since it uses less digits than its factorization.

21020313201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380750 (or 380742 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21020313201012 its reverse (21010231302012), we get a palindrome (42030544503024).

The spelling of 21020313201012 in words is "twenty-one trillion, twenty billion, three hundred thirteen million, two hundred one thousand, twelve".