20287837113 has 8 divisors (see below), whose sum is σ = 27454187808. Its totient is φ = 13323355584.

The previous prime is 20287837109. The next prime is 20287837127. The reversal of 20287837113 is 31173878202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20287837113 - 2² = 20287837109 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20287137113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50467056 + ... + 50467457.

It is an arithmetic number, because the mean of its divisors is an integer number (3431773476).

Almost surely, 2^20287837113 is an apocalyptic number.

It is an amenable number.

20287837113 is a deficient number, since it is larger than the sum of its proper divisors (7166350695).

20287837113 is a wasteful number, since it uses less digits than its factorization.

20287837113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100934583.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 20287837113 in words is "twenty billion, two hundred eighty-seven million, eight hundred thirty-seven thousand, one hundred thirteen".