21960840203 has 8 divisors (see below), whose sum is σ = 22099410000. Its totient is φ = 21822317568.

The previous prime is 21960840199. The next prime is 21960840217. The reversal of 21960840203 is 30204806912.

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

It is a cyclic number.

It is not a de Polignac number, because 21960840203 - 2² = 21960840199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21960840283) 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, 1650923 + ... + 1664171.

It is an arithmetic number, because the mean of its divisors is an integer number (2762426250).

Almost surely, 2^21960840203 is an apocalyptic number.

21960840203 is a deficient number, since it is larger than the sum of its proper divisors (138569797).

21960840203 is a wasteful number, since it uses less digits than its factorization.

21960840203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23581.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 21960840203 in words is "twenty-one billion, nine hundred sixty million, eight hundred forty thousand, two hundred three".