20103241313 has 4 divisors (see below), whose sum is σ = 20432802708. Its totient is φ = 19773679920.

The previous prime is 20103241303. The next prime is 20103241321. The reversal of 20103241313 is 31314230102.

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 4589791504 + 15513449809 = 67748^2 + 124553^2 .

It is a cyclic number.

It is not a de Polignac number, because 20103241313 - 2¹⁴ = 20103224929 is a prime.

It is a super-2 number, since 2×20103241313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103241303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164780606 + ... + 164780727.

It is an arithmetic number, because the mean of its divisors is an integer number (5108200677).

Almost surely, 2^20103241313 is an apocalyptic number.

It is an amenable number.

20103241313 is a deficient number, since it is larger than the sum of its proper divisors (329561395).

20103241313 is an equidigital number, since it uses as much as digits as its factorization.

20103241313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329561394.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20103241313 its reverse (31314230102), we get a palindrome (51417471415).

The spelling of 20103241313 in words is "twenty billion, one hundred three million, two hundred forty-one thousand, three hundred thirteen".