21032102203 has 8 divisors (see below), whose sum is σ = 24038850272. Its totient is φ = 18025894656.

The previous prime is 21032102159. The next prime is 21032102219. The reversal of 21032102203 is 30220123012.

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

It is not a de Polignac number, because 21032102203 - 2⁹ = 21032101691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032106203) 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, 48000 + ... + 210637.

It is an arithmetic number, because the mean of its divisors is an integer number (3004856284).

Almost surely, 2^21032102203 is an apocalyptic number.

21032102203 is a deficient number, since it is larger than the sum of its proper divisors (3006748069).

21032102203 is a wasteful number, since it uses less digits than its factorization.

21032102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270261.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032102203 its reverse (30220123012), we get a palindrome (51252225215).

The spelling of 21032102203 in words is "twenty-one billion, thirty-two million, one hundred two thousand, two hundred three".