21020030301100 has 36 divisors (see below), whose sum is σ = 45623467503208. Its totient is φ = 8406168480000.

The previous prime is 21020030301037. The next prime is 21020030301181. The reversal of 21020030301100 is 110303002012.

It is a super-2 number, since 2×21020030301100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22587126 + ... + 23499325.

Almost surely, 2^{21020030301100} is an apocalyptic number.

21020030301100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21020030301100 is an abundant number, since it is smaller than the sum of its proper divisors (24603437202108).

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

21020030301100 is a wasteful number, since it uses less digits than its factorization.

21020030301100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46091026 (or 46091019 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21020030301100 its reverse (110303002012), we get a palindrome (21130333303112).

The spelling of 21020030301100 in words is "twenty-one trillion, twenty billion, thirty million, three hundred one thousand, one hundred".