21113114365 has 48 divisors (see below), whose sum is σ = 29788342272. Its totient is φ = 14322946176.

The previous prime is 21113114329. The next prime is 21113114371. The reversal of 21113114365 is 56341131112.

It is not a de Polignac number, because 21113114365 - 2⁷ = 21113114237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14529979 + ... + 14531431.

It is an arithmetic number, because the mean of its divisors is an integer number (620590464).

Almost surely, 2^21113114365 is an apocalyptic number.

It is an amenable number.

21113114365 is a deficient number, since it is larger than the sum of its proper divisors (8675227907).

21113114365 is a wasteful number, since it uses less digits than its factorization.

21113114365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066 (or 2059 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

Adding to 21113114365 its reverse (56341131112), we get a palindrome (77454245477).

The spelling of 21113114365 in words is "twenty-one billion, one hundred thirteen million, one hundred fourteen thousand, three hundred sixty-five".