20200320013 has 4 divisors (see below), whose sum is σ = 20209757148. Its totient is φ = 20190882880.

The previous prime is 20200319983. The next prime is 20200320017. The reversal of 20200320013 is 31002300202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31002300202 = 2 ⋅15501150101.

It can be written as a sum of positive squares in 2 ways, for example, as 10079557609 + 10120762404 = 100397^2 + 100602^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200320013 - 2⁵ = 20200319981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200319975 and 20200320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200320017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4715356 + ... + 4719637.

It is an arithmetic number, because the mean of its divisors is an integer number (5052439287).

Almost surely, 2^20200320013 is an apocalyptic number.

It is an amenable number.

20200320013 is a deficient number, since it is larger than the sum of its proper divisors (9437135).

20200320013 is an equidigital number, since it uses as much as digits as its factorization.

20200320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437134.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20200320013 its reverse (31002300202), we get a palindrome (51202620215).

The spelling of 20200320013 in words is "twenty billion, two hundred million, three hundred twenty thousand, thirteen".