21434010232 has 16 divisors (see below), whose sum is σ = 40200152760. Its totient is φ = 10713969504.

The previous prime is 21434010167. The next prime is 21434010251. The reversal of 21434010232 is 23201043412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349303 + ... + 406054.

Almost surely, 2^21434010232 is an apocalyptic number.

It is an amenable number.

21434010232 is a deficient number, since it is larger than the sum of its proper divisors (18766142528).

21434010232 is a wasteful number, since it uses less digits than its factorization.

21434010232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758910 (or 758906 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21434010232 its reverse (23201043412), we get a palindrome (44635053644).

The spelling of 21434010232 in words is "twenty-one billion, four hundred thirty-four million, ten thousand, two hundred thirty-two".