111331332313 has 2 divisors, whose sum is σ = 111331332314. Its totient is φ = 111331332312.

The previous prime is 111331332289. The next prime is 111331332323. The reversal of 111331332313 is 313233133111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77299568784 + 34031763529 = 278028^2 + 184477^2 .

It is an emirp because it is prime and its reverse (313233133111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111331332313 - 2¹³ = 111331324121 is a prime.

It is not a weakly prime, because it can be changed into another prime (111331332323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665666156 + 55665666157.

It is an arithmetic number, because the mean of its divisors is an integer number (55665666157).

Almost surely, 2^111331332313 is an apocalyptic number.

It is an amenable number.

111331332313 is a deficient number, since it is larger than the sum of its proper divisors (1).

111331332313 is an equidigital number, since it uses as much as digits as its factorization.

111331332313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 25.

Adding to 111331332313 its reverse (313233133111), we get a palindrome (424564465424).

The spelling of 111331332313 in words is "one hundred eleven billion, three hundred thirty-one million, three hundred thirty-two thousand, three hundred thirteen".