20301304013 has 4 divisors (see below), whose sum is σ = 20312053020. Its totient is φ = 20290555008.

The previous prime is 20301303937. The next prime is 20301304019. The reversal of 20301304013 is 31040310302.

It is a happy number.

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 6096954889 + 14204349124 = 78083^2 + 119182^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301304013 - 2¹⁸ = 20301041869 is a prime.

It is a super-3 number, since 3×20301304013³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301303982 and 20301304000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301304019) 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, 5371670 + ... + 5375447.

It is an arithmetic number, because the mean of its divisors is an integer number (5078013255).

Almost surely, 2^20301304013 is an apocalyptic number.

It is an amenable number.

20301304013 is a deficient number, since it is larger than the sum of its proper divisors (10749007).

20301304013 is a wasteful number, since it uses less digits than its factorization.

20301304013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749006.

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

Adding to 20301304013 its reverse (31040310302), we get a palindrome (51341614315).

The spelling of 20301304013 in words is "twenty billion, three hundred one million, three hundred four thousand, thirteen".