111103031011013 has 4 divisors (see below), whose sum is σ = 111504124986060. Its totient is φ = 110701937035968.

The previous prime is 111103031010973. The next prime is 111103031011043. The reversal of 111103031011013 is 310110130301111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27267435443329 + 83835595567684 = 5221823^2 + 9156178^2 .

It is a cyclic number.

It is not a de Polignac number, because 111103031011013 - 2⁸ = 111103031010757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111103031010982 and 111103031011000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111103031011043) 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, 200546987108 + ... + 200546987661.

It is an arithmetic number, because the mean of its divisors is an integer number (27876031246515).

Almost surely, 2^{111103031011013} is an apocalyptic number.

It is an amenable number.

111103031011013 is a deficient number, since it is larger than the sum of its proper divisors (401093975047).

111103031011013 is an equidigital number, since it uses as much as digits as its factorization.

111103031011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401093975046.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 111103031011013 its reverse (310110130301111), we get a palindrome (421213161312124).

The spelling of 111103031011013 in words is "one hundred eleven trillion, one hundred three billion, thirty-one million, eleven thousand, thirteen".