21248426840203 has 8 divisors (see below), whose sum is σ = 21524424044480. Its totient is φ = 20972605380480.

The previous prime is 21248426840159. The next prime is 21248426840261. The reversal of 21248426840203 is 30204862484212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21248426840203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21248426847203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43692750 + ... + 44176387.

It is an arithmetic number, because the mean of its divisors is an integer number (2690553005560).

Almost surely, 2^{21248426840203} is an apocalyptic number.

21248426840203 is a deficient number, since it is larger than the sum of its proper divisors (275997204277).

21248426840203 is an equidigital number, since it uses as much as digits as its factorization.

21248426840203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87872277.

The product of its (nonzero) digits is 1179648, while the sum is 46.

The spelling of 21248426840203 in words is "twenty-one trillion, two hundred forty-eight billion, four hundred twenty-six million, eight hundred forty thousand, two hundred three".