20202303113 has 4 divisors (see below), whose sum is σ = 20232322068. Its totient is φ = 20172284160.

The previous prime is 20202303091. The next prime is 20202303127. The reversal of 20202303113 is 31130320202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4882795129 + 15319507984 = 69877^2 + 123772^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202303113 - 2¹⁴ = 20202286729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20202303091 and 20202303100.

It is not an unprimeable number, because it can be changed into a prime (20202303193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15008468 + ... + 15009813.

It is an arithmetic number, because the mean of its divisors is an integer number (5058080517).

Almost surely, 2^20202303113 is an apocalyptic number.

It is an amenable number.

20202303113 is a deficient number, since it is larger than the sum of its proper divisors (30018955).

20202303113 is an equidigital number, since it uses as much as digits as its factorization.

20202303113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30018954.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20202303113 its reverse (31130320202), we get a palindrome (51332623315).

The spelling of 20202303113 in words is "twenty billion, two hundred two million, three hundred three thousand, one hundred thirteen".