21012314032 has 10 divisors (see below), whose sum is σ = 40711358468. Its totient is φ = 10506157008.

The previous prime is 21012314021. The next prime is 21012314101. The reversal of 21012314032 is 23041321012.

It is a happy 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 as a sum of consecutive naturals, namely, 656634798 + ... + 656634829.

Almost surely, 2^21012314032 is an apocalyptic number.

It is an amenable number.

21012314032 is a deficient number, since it is larger than the sum of its proper divisors (19699044436).

21012314032 is a wasteful number, since it uses less digits than its factorization.

21012314032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313269635 (or 1313269629 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21012314032 its reverse (23041321012), we get a palindrome (44053635044).

The spelling of 21012314032 in words is "twenty-one billion, twelve million, three hundred fourteen thousand, thirty-two".