21241100403 has 12 divisors (see below), whose sum is σ = 30697856280. Its totient is φ = 14153225856.

The previous prime is 21241100359. The next prime is 21241100411. The reversal of 21241100403 is 30400114212.

21241100403 is a `hidden beast` number, since 21 + 241 + 1 + 0 + 0 + 403 = 666.

It is not a de Polignac number, because 21241100403 - 2¹⁴ = 21241084019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21241100443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 607701 + ... + 641702.

It is an arithmetic number, because the mean of its divisors is an integer number (2558154690).

Almost surely, 2^21241100403 is an apocalyptic number.

21241100403 is a deficient number, since it is larger than the sum of its proper divisors (9456755877).

21241100403 is a wasteful number, since it uses less digits than its factorization.

21241100403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251298 (or 1251295 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21241100403 its reverse (30400114212), we get a palindrome (51641214615).

The spelling of 21241100403 in words is "twenty-one billion, two hundred forty-one million, one hundred thousand, four hundred three".