111311033013 has 48 divisors (see below), whose sum is σ = 170936737920. Its totient is φ = 69648163200.

The previous prime is 111311033011. The next prime is 111311033027. The reversal of 111311033013 is 310330113111.

111311033013 is a `hidden beast` number, since 1 + 11 + 311 + 0 + 330 + 13 = 666.

It is not a de Polignac number, because 111311033013 - 2¹ = 111311033011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311033011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5305498 + ... + 5326436.

It is an arithmetic number, because the mean of its divisors is an integer number (3561182040).

Almost surely, 2^111311033013 is an apocalyptic number.

It is an amenable number.

111311033013 is a deficient number, since it is larger than the sum of its proper divisors (59625704907).

111311033013 is a wasteful number, since it uses less digits than its factorization.

111311033013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21450 (or 21447 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 111311033013 its reverse (310330113111), we get a palindrome (421641146124).

The spelling of 111311033013 in words is "one hundred eleven billion, three hundred eleven million, thirty-three thousand, thirteen".