111123023317 has 2 divisors, whose sum is σ = 111123023318. Its totient is φ = 111123023316.

The previous prime is 111123023279. The next prime is 111123023357. The reversal of 111123023317 is 713320321111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89545176081 + 21577847236 = 299241^2 + 146894^2 .

It is a cyclic number.

It is not a de Polignac number, because 111123023317 - 2¹⁹ = 111122499029 is a prime.

It is a super-2 number, since 2×111123023317² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111123023291 and 111123023300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111123023357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561511658 + 55561511659.

It is an arithmetic number, because the mean of its divisors is an integer number (55561511659).

Almost surely, 2^111123023317 is an apocalyptic number.

It is an amenable number.

111123023317 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123023317 is an equidigital number, since it uses as much as digits as its factorization.

111123023317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 111123023317 its reverse (713320321111), we get a palindrome (824443344428).

The spelling of 111123023317 in words is "one hundred eleven billion, one hundred twenty-three million, twenty-three thousand, three hundred seventeen".