21113212300302 has 16 divisors (see below), whose sum is σ = 42226636990032. Its totient is φ = 7037702035200.

The previous prime is 21113212300289. The next prime is 21113212300309. The reversal of 21113212300302 is 20300321231112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113212300309) 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, 7542403 + ... + 9955614.

It is an arithmetic number, because the mean of its divisors is an integer number (2639164811877).

Almost surely, 2^{21113212300302} is an apocalyptic number.

21113212300302 is an abundant number, since it is smaller than the sum of its proper divisors (21113424689730).

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

21113212300302 is a wasteful number, since it uses less digits than its factorization.

21113212300302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17699123.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21113212300302 its reverse (20300321231112), we get a palindrome (41413533531414).

The spelling of 21113212300302 in words is "twenty-one trillion, one hundred thirteen billion, two hundred twelve million, three hundred thousand, three hundred two".