21101102003030 has 32 divisors (see below), whose sum is σ = 43511088168000. Its totient is φ = 7217479059840.

The previous prime is 21101102003017. The next prime is 21101102003063. The reversal of 21101102003030 is 3030020110112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 21101102002996 and 21101102003014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357980405 + ... + 358039344.

It is an arithmetic number, because the mean of its divisors is an integer number (1359721505250).

Almost surely, 2^{21101102003030} is an apocalyptic number.

21101102003030 is an abundant number, since it is smaller than the sum of its proper divisors (22409986164970).

21101102003030 is a wasteful number, since it uses less digits than its factorization.

21101102003030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716020184.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21101102003030 its reverse (3030020110112), we get a palindrome (24131122113142).

The spelling of 21101102003030 in words is "twenty-one trillion, one hundred one billion, one hundred two million, three thousand, thirty".