21230014033 has 4 divisors (see below), whose sum is σ = 21254057968. Its totient is φ = 21205970100.

The previous prime is 21230014019. The next prime is 21230014063. The reversal of 21230014033 is 33041003212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21230014033 - 2⁹ = 21230013521 is a prime.

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 21230014033.

It is not an unprimeable number, because it can be changed into a prime (21230014063) 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, 12020643 + ... + 12022408.

It is an arithmetic number, because the mean of its divisors is an integer number (5313514492).

Almost surely, 2^21230014033 is an apocalyptic number.

It is an amenable number.

21230014033 is a deficient number, since it is larger than the sum of its proper divisors (24043935).

21230014033 is an equidigital number, since it uses as much as digits as its factorization.

21230014033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24043934.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21230014033 its reverse (33041003212), we get a palindrome (54271017245).

The spelling of 21230014033 in words is "twenty-one billion, two hundred thirty million, fourteen thousand, thirty-three".