20363111447 has 12 divisors (see below), whose sum is σ = 23699676600. Its totient is φ = 17445271536.

The previous prime is 20363111441. The next prime is 20363111467. The reversal of 20363111447 is 74411136302.

It is not a de Polignac number, because 20363111447 - 2³⁰ = 19289369623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20363111441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6197 + ... + 201902.

It is an arithmetic number, because the mean of its divisors is an integer number (1974973050).

Almost surely, 2^20363111447 is an apocalyptic number.

20363111447 is a deficient number, since it is larger than the sum of its proper divisors (3336565153).

20363111447 is a wasteful number, since it uses less digits than its factorization.

20363111447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210110 (or 210103 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

Adding to 20363111447 its reverse (74411136302), we get a palindrome (94774247749).

The spelling of 20363111447 in words is "twenty billion, three hundred sixty-three million, one hundred eleven thousand, four hundred forty-seven".