21314543224 has 16 divisors (see below), whose sum is σ = 43038981720. Its totient is φ = 9837481440.

The previous prime is 21314543219. The next prime is 21314543231. The reversal of 21314543224 is 42234541312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102473662 + ... + 102473869.

Almost surely, 2^21314543224 is an apocalyptic number.

It is an amenable number.

21314543224 is an abundant number, since it is smaller than the sum of its proper divisors (21724438496).

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

21314543224 is a wasteful number, since it uses less digits than its factorization.

21314543224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204947550 (or 204947546 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The spelling of 21314543224 in words is "twenty-one billion, three hundred fourteen million, five hundred forty-three thousand, two hundred twenty-four".