20001103313 has 4 divisors (see below), whose sum is σ = 21177638820. Its totient is φ = 18824567808.

The previous prime is 20001103303. The next prime is 20001103319. The reversal of 20001103313 is 31330110002.

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 10205646529 + 9795456784 = 101023^2 + 98972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001103313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20001103319) 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, 588267728 + ... + 588267761.

It is an arithmetic number, because the mean of its divisors is an integer number (5294409705).

Almost surely, 2^20001103313 is an apocalyptic number.

It is an amenable number.

20001103313 is a deficient number, since it is larger than the sum of its proper divisors (1176535507).

20001103313 is a wasteful number, since it uses less digits than its factorization.

20001103313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176535506.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20001103313 its reverse (31330110002), we get a palindrome (51331213315).

The spelling of 20001103313 in words is "twenty billion, one million, one hundred three thousand, three hundred thirteen".