21265311114 has 12 divisors (see below), whose sum is σ = 46074840786. Its totient is φ = 7088437032.

The previous prime is 21265311107. The next prime is 21265311127. The reversal of 21265311114 is 41111356212.

21265311114 is a `hidden beast` number, since 2 + 1 + 2 + 653 + 1 + 1 + 1 + 1 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12663676089 + 8601635025 = 112533^2 + 92745^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 590703069 + ... + 590703104.

Almost surely, 2^21265311114 is an apocalyptic number.

21265311114 is an abundant number, since it is smaller than the sum of its proper divisors (24809529672).

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

21265311114 is a wasteful number, since it uses less digits than its factorization.

21265311114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181406181 (or 1181406178 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

Adding to 21265311114 its reverse (41111356212), we get a palindrome (62376667326).

The spelling of 21265311114 in words is "twenty-one billion, two hundred sixty-five million, three hundred eleven thousand, one hundred fourteen".