21114134011 has 16 divisors (see below), whose sum is σ = 22792428000. Its totient is φ = 19484794368.

The previous prime is 21114134003. The next prime is 21114134059. The reversal of 21114134011 is 11043141112.

It is a cyclic number.

It is not a de Polignac number, because 21114134011 - 2³ = 21114134003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21114134011.

It is not an unprimeable number, because it can be changed into a prime (21114134071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605340 + ... + 1618438.

It is an arithmetic number, because the mean of its divisors is an integer number (1424526750).

Almost surely, 2^21114134011 is an apocalyptic number.

21114134011 is a deficient number, since it is larger than the sum of its proper divisors (1678293989).

21114134011 is a wasteful number, since it uses less digits than its factorization.

21114134011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14958.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21114134011 its reverse (11043141112), we get a palindrome (32157275123).

The spelling of 21114134011 in words is "twenty-one billion, one hundred fourteen million, one hundred thirty-four thousand, eleven".