21040053504314 has 16 divisors (see below), whose sum is σ = 34453364750952. Its totient is φ = 9577769349888.

The previous prime is 21040053504289. The next prime is 21040053504341. The reversal of 21040053504314 is 41340535004012.

It can be written as a sum of positive squares in 4 ways, for example, as 14467623998689 + 6572429505625 = 3803633^2 + 2563675^2 .

It is a super-3 number, since 3×21040053504314³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 5542688699 + ... + 5542692494.

Almost surely, 2^{21040053504314} is an apocalyptic number.

21040053504314 is a deficient number, since it is larger than the sum of its proper divisors (13413311246638).

21040053504314 is a wasteful number, since it uses less digits than its factorization.

21040053504314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085381281.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 21040053504314 its reverse (41340535004012), we get a palindrome (62380588508326).

The spelling of 21040053504314 in words is "twenty-one trillion, forty billion, fifty-three million, five hundred four thousand, three hundred fourteen".