21114301312 has 64 divisors (see below), whose sum is σ = 45700598160. Its totient is φ = 9658736640.

The previous prime is 21114301303. The next prime is 21114301331. The reversal of 21114301312 is 21310341112.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 21114301312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131887 + ... + 244177.

Almost surely, 2^21114301312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21114301312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22850299080).

21114301312 is an abundant number, since it is smaller than the sum of its proper divisors (24586296848).

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

21114301312 is a wasteful number, since it uses less digits than its factorization.

21114301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112431 (or 112419 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21114301312 its reverse (21310341112), we get a palindrome (42424642424).

The spelling of 21114301312 in words is "twenty-one billion, one hundred fourteen million, three hundred one thousand, three hundred twelve".