111133120013 has 4 divisors (see below), whose sum is σ = 113229971388. Its totient is φ = 109036268640.

The previous prime is 111133120003. The next prime is 111133120079. The reversal of 111133120013 is 310021331111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310021331111 = 2441 ⋅127005871.

It can be written as a sum of positive squares in 2 ways, for example, as 46443267049 + 64689852964 = 215507^2 + 254342^2 .

It is a cyclic number.

It is not a de Polignac number, because 111133120013 - 2⁴ = 111133119997 is a prime.

It is a super-2 number, since 2×111133120013² (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 = 111133119973 and 111133120000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111133120003) 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, 1048425608 + ... + 1048425713.

It is an arithmetic number, because the mean of its divisors is an integer number (28307492847).

Almost surely, 2^111133120013 is an apocalyptic number.

It is an amenable number.

111133120013 is a deficient number, since it is larger than the sum of its proper divisors (2096851375).

111133120013 is an equidigital number, since it uses as much as digits as its factorization.

111133120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096851374.

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

Adding to 111133120013 its reverse (310021331111), we get a palindrome (421154451124).

The spelling of 111133120013 in words is "one hundred eleven billion, one hundred thirty-three million, one hundred twenty thousand, thirteen".