20013203113 has 2 divisors, whose sum is σ = 20013203114. Its totient is φ = 20013203112.

The previous prime is 20013203087. The next prime is 20013203149. The reversal of 20013203113 is 31130231002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10296566784 + 9716636329 = 101472^2 + 98573^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013203113 - 2¹³ = 20013194921 is a prime.

It is not a weakly prime, because it can be changed into another prime (20013203173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006601556 + 10006601557.

It is an arithmetic number, because the mean of its divisors is an integer number (10006601557).

Almost surely, 2^20013203113 is an apocalyptic number.

It is an amenable number.

20013203113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013203113 is an equidigital number, since it uses as much as digits as its factorization.

20013203113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20013203113 its reverse (31130231002), we get a palindrome (51143434115).

The spelling of 20013203113 in words is "twenty billion, thirteen million, two hundred three thousand, one hundred thirteen".