21202010002103 has 16 divisors (see below), whose sum is σ = 24258611520000. Its totient is φ = 18152346475872.

The previous prime is 21202010002081. The next prime is 21202010002109. The reversal of 21202010002103 is 30120001020212.

It is a happy number.

It is not a de Polignac number, because 21202010002103 - 2²² = 21202005807799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202010002109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126640013 + ... + 126807321.

It is an arithmetic number, because the mean of its divisors is an integer number (1516163220000).

Almost surely, 2^{21202010002103} is an apocalyptic number.

21202010002103 is a deficient number, since it is larger than the sum of its proper divisors (3056601517897).

21202010002103 is a wasteful number, since it uses less digits than its factorization.

21202010002103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187934.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21202010002103 its reverse (30120001020212), we get a palindrome (51322011022315).

The spelling of 21202010002103 in words is "twenty-one trillion, two hundred two billion, ten million, two thousand, one hundred three".