11031020113 has 4 divisors (see below), whose sum is σ = 11031373620. Its totient is φ = 11030666608.

The previous prime is 11031020107. The next prime is 11031020159. The reversal of 11031020113 is 31102013011.

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 420578064 + 10610442049 = 20508^2 + 103007^2 .

It is a cyclic number.

It is not a de Polignac number, because 11031020113 - 2⁵ = 11031020081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031020093 and 11031020102.

It is not an unprimeable number, because it can be changed into a prime (11031020173) 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, 124870 + ... + 194047.

It is an arithmetic number, because the mean of its divisors is an integer number (2757843405).

Almost surely, 2^11031020113 is an apocalyptic number.

It is an amenable number.

11031020113 is a deficient number, since it is larger than the sum of its proper divisors (353507).

11031020113 is an equidigital number, since it uses as much as digits as its factorization.

11031020113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353506.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11031020113 its reverse (31102013011), we get a palindrome (42133033124).

The spelling of 11031020113 in words is "eleven billion, thirty-one million, twenty thousand, one hundred thirteen".