21532013314 has 16 divisors (see below), whose sum is σ = 37105284096. Its totient is φ = 9179690400.

The previous prime is 21532013291. The next prime is 21532013317. The reversal of 21532013314 is 41331023512.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21532013317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4023507 + ... + 4028854.

It is an arithmetic number, because the mean of its divisors is an integer number (2319080256).

Almost surely, 2^21532013314 is an apocalyptic number.

21532013314 is a deficient number, since it is larger than the sum of its proper divisors (15573270782).

21532013314 is a wasteful number, since it uses less digits than its factorization.

21532013314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8052561.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 21532013314 its reverse (41331023512), we get a palindrome (62863036826).

The spelling of 21532013314 in words is "twenty-one billion, five hundred thirty-two million, thirteen thousand, three hundred fourteen".