111011121317 has 2 divisors, whose sum is σ = 111011121318. Its totient is φ = 111011121316.

The previous prime is 111011121223. The next prime is 111011121341. The reversal of 111011121317 is 713121110111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100008370081 + 11002751236 = 316241^2 + 104894^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011121317 - 2⁸ = 111011121061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111911121317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505560658 + 55505560659.

It is an arithmetic number, because the mean of its divisors is an integer number (55505560659).

Almost surely, 2^111011121317 is an apocalyptic number.

It is an amenable number.

111011121317 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011121317 is an equidigital number, since it uses as much as digits as its factorization.

111011121317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 20.

Adding to 111011121317 its reverse (713121110111), we get a palindrome (824132231428).

The spelling of 111011121317 in words is "one hundred eleven billion, eleven million, one hundred twenty-one thousand, three hundred seventeen".