21483012027 has 4 divisors (see below), whose sum is σ = 28644016040. Its totient is φ = 14322008016.

The previous prime is 21483011971. The next prime is 21483012029. The reversal of 21483012027 is 72021038412.

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

It is not a de Polignac number, because 21483012027 - 2⁷ = 21483011899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21483011985 and 21483012003.

It is not an unprimeable number, because it can be changed into a prime (21483012029) 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, 3580502002 + ... + 3580502007.

It is an arithmetic number, because the mean of its divisors is an integer number (7161004010).

Almost surely, 2^21483012027 is an apocalyptic number.

21483012027 is a deficient number, since it is larger than the sum of its proper divisors (7161004013).

21483012027 is an equidigital number, since it uses as much as digits as its factorization.

21483012027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161004012.

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 21483012027 in words is "twenty-one billion, four hundred eighty-three million, twelve thousand, twenty-seven".