111221530313 has 2 divisors, whose sum is σ = 111221530314. Its totient is φ = 111221530312.

The previous prime is 111221530289. The next prime is 111221530327. The reversal of 111221530313 is 313035122111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58627905424 + 52593624889 = 242132^2 + 229333^2 .

It is a cyclic number.

It is not a de Polignac number, because 111221530313 - 2¹⁶ = 111221464777 is a prime.

It is not a weakly prime, because it can be changed into another prime (111221530363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610765156 + 55610765157.

It is an arithmetic number, because the mean of its divisors is an integer number (55610765157).

Almost surely, 2^111221530313 is an apocalyptic number.

It is an amenable number.

111221530313 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221530313 is an equidigital number, since it uses as much as digits as its factorization.

111221530313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 111221530313 its reverse (313035122111), we get a palindrome (424256652424).

The spelling of 111221530313 in words is "one hundred eleven billion, two hundred twenty-one million, five hundred thirty thousand, three hundred thirteen".