30203100013 has 4 divisors (see below), whose sum is σ = 30210225948. Its totient is φ = 30195974080.

The previous prime is 30203099999. The next prime is 30203100029. The reversal of 30203100013 is 31000130203.

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 14806509124 + 15396590889 = 121682^2 + 124083^2 .

It is a cyclic number.

It is not a de Polignac number, because 30203100013 - 2²¹ = 30201002861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30203099966 and 30203100002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203100073) 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, 3556606 + ... + 3565087.

It is an arithmetic number, because the mean of its divisors is an integer number (7552556487).

Almost surely, 2^30203100013 is an apocalyptic number.

It is an amenable number.

30203100013 is a deficient number, since it is larger than the sum of its proper divisors (7125935).

30203100013 is an equidigital number, since it uses as much as digits as its factorization.

30203100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125934.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 30203100013 its reverse (31000130203), we get a palindrome (61203230216).

The spelling of 30203100013 in words is "thirty billion, two hundred three million, one hundred thousand, thirteen".