21303101101200 has 60 divisors (see below), whose sum is σ = 68240933864688. Its totient is φ = 5680826960000.

The previous prime is 21303101101133. The next prime is 21303101101201. The reversal of 21303101101200 is 210110130312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21303101101200.

It is not an unprimeable number, because it can be changed into a prime (21303101101201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8876290926 + ... + 8876293325.

Almost surely, 2^{21303101101200} is an apocalyptic number.

21303101101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21303101101200 is an abundant number, since it is smaller than the sum of its proper divisors (46937832763488).

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

21303101101200 is a wasteful number, since it uses less digits than its factorization.

21303101101200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17752584272 (or 17752584261 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21303101101200 its reverse (210110130312), we get a palindrome (21513211231512).

The spelling of 21303101101200 in words is "twenty-one trillion, three hundred three billion, one hundred one million, one hundred one thousand, two hundred".