21314422432 has 24 divisors (see below), whose sum is σ = 41970973716. Its totient is φ = 10655127552.

The previous prime is 21314422429. The next prime is 21314422447. The reversal of 21314422432 is 23422441312.

It can be written as a sum of positive squares in 2 ways, for example, as 15927449616 + 5386972816 = 126204^2 + 73396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21314422432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108208 + ... + 233104.

Almost surely, 2^21314422432 is an apocalyptic number.

It is an amenable number.

21314422432 is a deficient number, since it is larger than the sum of its proper divisors (20656551284).

21314422432 is a wasteful number, since it uses less digits than its factorization.

21314422432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130240 (or 130232 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

Adding to 21314422432 its reverse (23422441312), we get a palindrome (44736863744).

The spelling of 21314422432 in words is "twenty-one billion, three hundred fourteen million, four hundred twenty-two thousand, four hundred thirty-two".