21132201022103 has 4 divisors (see below), whose sum is σ = 22375271670480. Its totient is φ = 19889130373728.

The previous prime is 21132201022099. The next prime is 21132201022117. The reversal of 21132201022103 is 30122010223112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21132201022103 - 2² = 21132201022099 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 (21132201022123) 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 3 ways as a sum of consecutive naturals, for example, 621535324163 + ... + 621535324196.

It is an arithmetic number, because the mean of its divisors is an integer number (5593817917620).

Almost surely, 2^{21132201022103} is an apocalyptic number.

21132201022103 is a deficient number, since it is larger than the sum of its proper divisors (1243070648377).

21132201022103 is a wasteful number, since it uses less digits than its factorization.

21132201022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243070648376.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21132201022103 its reverse (30122010223112), we get a palindrome (51254211245215).

The spelling of 21132201022103 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred one million, twenty-two thousand, one hundred three".