21143114112 has 32 divisors (see below), whose sum is σ = 56161397880. Its totient is φ = 7047704576.

The previous prime is 21143114099. The next prime is 21143114117. The reversal of 21143114112 is 21141134112.

It is a tau number, because it is divible by the number of its divisors (32).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21143114117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27529713 + ... + 27530480.

Almost surely, 2^21143114112 is an apocalyptic number.

It is an amenable number.

21143114112 is an abundant number, since it is smaller than the sum of its proper divisors (35018283768).

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

21143114112 is an equidigital number, since it uses as much as digits as its factorization.

21143114112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55060210 (or 55060198 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

Adding to 21143114112 its reverse (21141134112), we get a palindrome (42284248224).

The spelling of 21143114112 in words is "twenty-one billion, one hundred forty-three million, one hundred fourteen thousand, one hundred twelve".