21314144012 has 12 divisors (see below), whose sum is σ = 42628288080. Its totient is φ = 9134633136.

The previous prime is 21314143997. The next prime is 21314144053. The reversal of 21314144012 is 21044141312.

21314144012 is an admirable number.

It is a super-2 number, since 2×21314144012² (a number of 21 digits) contains 22 as substring.

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, 380609687 + ... + 380609742.

It is an arithmetic number, because the mean of its divisors is an integer number (3552357340).

Almost surely, 2^21314144012 is an apocalyptic number.

It is an amenable number.

21314144012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21314144012 is a wasteful number, since it uses less digits than its factorization.

21314144012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761219440 (or 761219438 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21314144012 its reverse (21044141312), we get a palindrome (42358285324).

The spelling of 21314144012 in words is "twenty-one billion, three hundred fourteen million, one hundred forty-four thousand, twelve".