11031320013 has 16 divisors (see below), whose sum is σ = 16958391936. Its totient is φ = 6247825920.

The previous prime is 11031319997. The next prime is 11031320021. The reversal of 11031320013 is 31002313011.

It is not a de Polignac number, because 11031320013 - 2⁴ = 11031319997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11031319974 and 11031320001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031320033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2321968 + ... + 2326713.

It is an arithmetic number, because the mean of its divisors is an integer number (1059899496).

Almost surely, 2^11031320013 is an apocalyptic number.

It is an amenable number.

11031320013 is a deficient number, since it is larger than the sum of its proper divisors (5927071923).

11031320013 is a wasteful number, since it uses less digits than its factorization.

11031320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648804.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 11031320013 its reverse (31002313011), we get a palindrome (42033633024).

The spelling of 11031320013 in words is "eleven billion, thirty-one million, three hundred twenty thousand, thirteen".