111320541230513 has 2 divisors, whose sum is σ = 111320541230514. Its totient is φ = 111320541230512.

The previous prime is 111320541230491. The next prime is 111320541230531. The reversal of 111320541230513 is 315032145023111.

Together with next prime (111320541230531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88565189384464 + 22755351846049 = 9410908^2 + 4770257^2 .

It is an emirp because it is prime and its reverse (315032145023111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111320541230513 - 2⁸ = 111320541230257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111320541230513.

It is not a weakly prime, because it can be changed into another prime (111320541230573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660270615256 + 55660270615257.

It is an arithmetic number, because the mean of its divisors is an integer number (55660270615257).

Almost surely, 2^{111320541230513} is an apocalyptic number.

It is an amenable number.

111320541230513 is a deficient number, since it is larger than the sum of its proper divisors (1).

111320541230513 is an equidigital number, since it uses as much as digits as its factorization.

111320541230513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 111320541230513 its reverse (315032145023111), we get a palindrome (426352686253624).

The spelling of 111320541230513 in words is "one hundred eleven trillion, three hundred twenty billion, five hundred forty-one million, two hundred thirty thousand, five hundred thirteen".