21302020121302 has 8 divisors (see below), whose sum is σ = 32632881888096. Its totient is φ = 10424392825272.

The previous prime is 21302020121287. The next prime is 21302020121303. The reversal of 21302020121302 is 20312102020312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21302020121302² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21302020121302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302020121303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113308617573 + ... + 113308617760.

It is an arithmetic number, because the mean of its divisors is an integer number (4079110236012).

Almost surely, 2^{21302020121302} is an apocalyptic number.

21302020121302 is a deficient number, since it is larger than the sum of its proper divisors (11330861766794).

21302020121302 is a wasteful number, since it uses less digits than its factorization.

21302020121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226617235382.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21302020121302 its reverse (20312102020312), we get a palindrome (41614122141614).

The spelling of 21302020121302 in words is "twenty-one trillion, three hundred two billion, twenty million, one hundred twenty-one thousand, three hundred two".