20013030013 has 4 divisors (see below), whose sum is σ = 20025485280. Its totient is φ = 20000574748.

The previous prime is 20013029983. The next prime is 20013030031. The reversal of 20013030013 is 31003031002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20013030013 - 2⁹ = 20013029501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013029975 and 20013030002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013030613) 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, 6225223 + ... + 6228436.

It is an arithmetic number, because the mean of its divisors is an integer number (5006371320).

Almost surely, 2^20013030013 is an apocalyptic number.

It is an amenable number.

20013030013 is a deficient number, since it is larger than the sum of its proper divisors (12455267).

20013030013 is a wasteful number, since it uses less digits than its factorization.

20013030013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455266.

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

Adding to 20013030013 its reverse (31003031002), we get a palindrome (51016061015).

The spelling of 20013030013 in words is "twenty billion, thirteen million, thirty thousand, thirteen".