21244535103 has 8 divisors (see below), whose sum is σ = 30901142016. Its totient is φ = 12875475800.

The previous prime is 21244535101. The next prime is 21244535159. The reversal of 21244535103 is 30153544212.

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

It is not a de Polignac number, because 21244535103 - 2¹ = 21244535101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21244535101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321886863 + ... + 321886928.

It is an arithmetic number, because the mean of its divisors is an integer number (3862642752).

Almost surely, 2^21244535103 is an apocalyptic number.

21244535103 is a deficient number, since it is larger than the sum of its proper divisors (9656606913).

21244535103 is a wasteful number, since it uses less digits than its factorization.

21244535103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643773805.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 21244535103 in words is "twenty-one billion, two hundred forty-four million, five hundred thirty-five thousand, one hundred three".