21471314348203 has 4 divisors (see below), whose sum is σ = 21765441942088. Its totient is φ = 21177186754320.

The previous prime is 21471314348191. The next prime is 21471314348213. The reversal of 21471314348203 is 30284341317412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21471314348203 - 2¹⁷ = 21471314217131 is a prime.

It is a super-2 number, since 2×21471314348203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21471314348203.

It is not an unprimeable number, because it can be changed into a prime (21471314348213) 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 3 ways as a sum of consecutive naturals, for example, 147063796833 + ... + 147063796978.

It is an arithmetic number, because the mean of its divisors is an integer number (5441360485522).

Almost surely, 2^{21471314348203} is an apocalyptic number.

21471314348203 is a deficient number, since it is larger than the sum of its proper divisors (294127593885).

21471314348203 is an equidigital number, since it uses as much as digits as its factorization.

21471314348203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294127593884.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 21471314348203 in words is "twenty-one trillion, four hundred seventy-one billion, three hundred fourteen million, three hundred forty-eight thousand, two hundred three".