111012031311 has 32 divisors (see below), whose sum is σ = 157971824640. Its totient is φ = 69181283424.

The previous prime is 111012031303. The next prime is 111012031343. The reversal of 111012031311 is 113130210111.

It is not a de Polignac number, because 111012031311 - 2³ = 111012031303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012031301) 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, 2189910 + ... + 2240028.

It is an arithmetic number, because the mean of its divisors is an integer number (4936619520).

Almost surely, 2^111012031311 is an apocalyptic number.

111012031311 is a deficient number, since it is larger than the sum of its proper divisors (46959793329).

111012031311 is a wasteful number, since it uses less digits than its factorization.

111012031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50875.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111012031311 its reverse (113130210111), we get a palindrome (224142241422).

The spelling of 111012031311 in words is "one hundred eleven billion, twelve million, thirty-one thousand, three hundred eleven".