111320113013 has 4 divisors (see below), whose sum is σ = 111397797708. Its totient is φ = 111242428320.

The previous prime is 111320112971. The next prime is 111320113019. The reversal of 111320113013 is 310311023111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310311023111 = 5857 ⋅52981223.

It can be written as a sum of positive squares in 2 ways, for example, as 104092052689 + 7228060324 = 322633^2 + 85018^2 .

It is a cyclic number.

It is not a de Polignac number, because 111320113013 - 2⁶ = 111320112949 is a prime.

It is a super-2 number, since 2×111320113013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111320112982 and 111320113000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320113019) 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, 38840198 + ... + 38843063.

It is an arithmetic number, because the mean of its divisors is an integer number (27849449427).

Almost surely, 2^111320113013 is an apocalyptic number.

It is an amenable number.

111320113013 is a deficient number, since it is larger than the sum of its proper divisors (77684695).

111320113013 is an equidigital number, since it uses as much as digits as its factorization.

111320113013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77684694.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 111320113013 its reverse (310311023111), we get a palindrome (421631136124).

The spelling of 111320113013 in words is "one hundred eleven billion, three hundred twenty million, one hundred thirteen thousand, thirteen".