21463675203 has 4 divisors (see below), whose sum is σ = 28618233608. Its totient is φ = 14309116800.

The previous prime is 21463675201. The next prime is 21463675237. The reversal of 21463675203 is 30257636412.

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

It is not a de Polignac number, because 21463675203 - 2¹ = 21463675201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21463675201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3577279198 + ... + 3577279203.

It is an arithmetic number, because the mean of its divisors is an integer number (7154558402).

Almost surely, 2^21463675203 is an apocalyptic number.

21463675203 is a deficient number, since it is larger than the sum of its proper divisors (7154558405).

21463675203 is an equidigital number, since it uses as much as digits as its factorization.

21463675203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154558404.

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 21463675203 in words is "twenty-one billion, four hundred sixty-three million, six hundred seventy-five thousand, two hundred three".