21110134312 has 16 divisors (see below), whose sum is σ = 39646719360. Its totient is φ = 10537675824.

The previous prime is 21110134303. The next prime is 21110134361. The reversal of 21110134312 is 21343101112.

It is a self number, because there is not a number n which added to its sum of digits gives 21110134312.

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, 2168758 + ... + 2178469.

It is an arithmetic number, because the mean of its divisors is an integer number (2477919960).

Almost surely, 2^21110134312 is an apocalyptic number.

It is an amenable number.

21110134312 is a deficient number, since it is larger than the sum of its proper divisors (18536585048).

21110134312 is a wasteful number, since it uses less digits than its factorization.

21110134312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347840 (or 4347836 counting only the distinct ones).

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

Adding to 21110134312 its reverse (21343101112), we get a palindrome (42453235424).

The spelling of 21110134312 in words is "twenty-one billion, one hundred ten million, one hundred thirty-four thousand, three hundred twelve".