111332312257 has 2 divisors, whose sum is σ = 111332312258. Its totient is φ = 111332312256.

The previous prime is 111332312227. The next prime is 111332312297. The reversal of 111332312257 is 752213233111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85099974961 + 26232337296 = 291719^2 + 161964^2 .

It is an emirp because it is prime and its reverse (752213233111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111332312257 is a prime.

It is not a weakly prime, because it can be changed into another prime (111332312227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55666156128 + 55666156129.

It is an arithmetic number, because the mean of its divisors is an integer number (55666156129).

Almost surely, 2^111332312257 is an apocalyptic number.

It is an amenable number.

111332312257 is a deficient number, since it is larger than the sum of its proper divisors (1).

111332312257 is an equidigital number, since it uses as much as digits as its factorization.

111332312257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

Adding to 111332312257 its reverse (752213233111), we get a palindrome (863545545368).

The spelling of 111332312257 in words is "one hundred eleven billion, three hundred thirty-two million, three hundred twelve thousand, two hundred fifty-seven".