111312021133013 has 2 divisors, whose sum is σ = 111312021133014. Its totient is φ = 111312021133012.

The previous prime is 111312021132959. The next prime is 111312021133063. The reversal of 111312021133013 is 310331120213111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58241043822724 + 53070977310289 = 7631582^2 + 7284983^2 .

It is a cyclic number.

It is not a de Polignac number, because 111312021133013 - 2⁸ = 111312021132757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111312021133013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111312021133063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55656010566506 + 55656010566507.

It is an arithmetic number, because the mean of its divisors is an integer number (55656010566507).

Almost surely, 2^{111312021133013} is an apocalyptic number.

It is an amenable number.

111312021133013 is a deficient number, since it is larger than the sum of its proper divisors (1).

111312021133013 is an equidigital number, since it uses as much as digits as its factorization.

111312021133013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 111312021133013 its reverse (310331120213111), we get a palindrome (421643141346124).

The spelling of 111312021133013 in words is "one hundred eleven trillion, three hundred twelve billion, twenty-one million, one hundred thirty-three thousand, thirteen".