21134100112 has 40 divisors (see below), whose sum is σ = 41210237376. Its totient is φ = 10499346816.

The previous prime is 21134100101. The next prime is 21134100131. The reversal of 21134100112 is 21100143112.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 2590023 + ... + 2598169.

Almost surely, 2^21134100112 is an apocalyptic number.

It is an amenable number.

21134100112 is a deficient number, since it is larger than the sum of its proper divisors (20076137264).

21134100112 is a wasteful number, since it uses less digits than its factorization.

21134100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175 (or 9169 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21134100112 its reverse (21100143112), we get a palindrome (42234243224).

The spelling of 21134100112 in words is "twenty-one billion, one hundred thirty-four million, one hundred thousand, one hundred twelve".