11031311011 has 16 divisors (see below), whose sum is σ = 12893126400. Its totient is φ = 9243131040.

The previous prime is 11031311003. The next prime is 11031311051. The reversal of 11031311011 is 11011313011.

It is a cyclic number.

It is not a de Polignac number, because 11031311011 - 2³ = 11031311003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11031310982 and 11031311000.

It is not an unprimeable number, because it can be changed into a prime (11031311051) 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, 28336 + ... + 151213.

It is an arithmetic number, because the mean of its divisors is an integer number (805820400).

Almost surely, 2^11031311011 is an apocalyptic number.

11031311011 is a deficient number, since it is larger than the sum of its proper divisors (1861815389).

11031311011 is a wasteful number, since it uses less digits than its factorization.

11031311011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179754.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 11031311011 its reverse (11011313011), we get a palindrome (22042624022).

The spelling of 11031311011 in words is "eleven billion, thirty-one million, three hundred eleven thousand, eleven".