21434045003 has 4 divisors (see below), whose sum is σ = 24496051440. Its totient is φ = 18372038568.

The previous prime is 21434044997. The next prime is 21434045033. The reversal of 21434045003 is 30054043412.

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 21434045003 - 2²² = 21429850699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21434045033) 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, 1531003208 + ... + 1531003221.

It is an arithmetic number, because the mean of its divisors is an integer number (6124012860).

Almost surely, 2^21434045003 is an apocalyptic number.

21434045003 is a deficient number, since it is larger than the sum of its proper divisors (3062006437).

21434045003 is an equidigital number, since it uses as much as digits as its factorization.

21434045003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062006436.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 21434045003 its reverse (30054043412), we get a palindrome (51488088415).

The spelling of 21434045003 in words is "twenty-one billion, four hundred thirty-four million, forty-five thousand, three".