13111031112011 has 32 divisors (see below), whose sum is σ = 15692288163840. Its totient is φ = 10710453799584.

The previous prime is 13111031111993. The next prime is 13111031112013. The reversal of 13111031112011 is 11021113011131.

It is a happy number.

13111031112011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13111031112011 - 2⁴² = 8712984600907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111031112013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50784110 + ... + 51041628.

It is an arithmetic number, because the mean of its divisors is an integer number (490384005120).

Almost surely, 2^{13111031112011} is an apocalyptic number.

13111031112011 is a deficient number, since it is larger than the sum of its proper divisors (2581257051829).

13111031112011 is a wasteful number, since it uses less digits than its factorization.

13111031112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258695.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 13111031112011 its reverse (11021113011131), we get a palindrome (24132144123142).

The spelling of 13111031112011 in words is "thirteen trillion, one hundred eleven billion, thirty-one million, one hundred twelve thousand, eleven".