21434003334 has 12 divisors (see below), whose sum is σ = 46440340596. Its totient is φ = 7144667772.

The previous prime is 21434003309. The next prime is 21434003363. The reversal of 21434003334 is 43330043412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21434003298 and 21434003307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 595388964 + ... + 595388999.

It is an arithmetic number, because the mean of its divisors is an integer number (3870028383).

Almost surely, 2^21434003334 is an apocalyptic number.

21434003334 is an abundant number, since it is smaller than the sum of its proper divisors (25006337262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21434003334 is a wasteful number, since it uses less digits than its factorization.

21434003334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190777971 (or 1190777968 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 21434003334 its reverse (43330043412), we get a palindrome (64764046746).

The spelling of 21434003334 in words is "twenty-one billion, four hundred thirty-four million, three thousand, three hundred thirty-four".