21303030201100 has 144 divisors (see below), whose sum is σ = 47256842556000. Its totient is φ = 8333740800000.

The previous prime is 21303030201097. The next prime is 21303030201133. The reversal of 21303030201100 is 110203030312.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 944732626 + ... + 944755174.

It is an arithmetic number, because the mean of its divisors is an integer number (328172517750).

Almost surely, 2^{21303030201100} is an apocalyptic number.

21303030201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21303030201100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23628421278000).

21303030201100 is an abundant number, since it is smaller than the sum of its proper divisors (25953812354900).

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

21303030201100 is a wasteful number, since it uses less digits than its factorization.

21303030201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23804 (or 23797 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21303030201100 its reverse (110203030312), we get a palindrome (21413233231412).

The spelling of 21303030201100 in words is "twenty-one trillion, three hundred three billion, thirty million, two hundred one thousand, one hundred".