21103030102101 has 8 divisors (see below), whose sum is σ = 28141110698880. Its totient is φ = 14066818120032.

The previous prime is 21103030102073. The next prime is 21103030102157. The reversal of 21103030102101 is 10120103030112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21103030102101 - 2⁵ = 21103030102069 is a prime.

It is a super-2 number, since 2×21103030102101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103030102601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 467127325 + ... + 467172498.

It is an arithmetic number, because the mean of its divisors is an integer number (3517638837360).

Almost surely, 2^{21103030102101} is an apocalyptic number.

It is an amenable number.

21103030102101 is a deficient number, since it is larger than the sum of its proper divisors (7038080596779).

21103030102101 is an equidigital number, since it uses as much as digits as its factorization.

21103030102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934307355.

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

Adding to 21103030102101 its reverse (10120103030112), we get a palindrome (31223133132213).

The spelling of 21103030102101 in words is "twenty-one trillion, one hundred three billion, thirty million, one hundred two thousand, one hundred one".