111343011517 has 2 divisors, whose sum is σ = 111343011518. Its totient is φ = 111343011516.

The previous prime is 111343011503. The next prime is 111343011553. The reversal of 111343011517 is 715110343111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67171162276 + 44171849241 = 259174^2 + 210171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111343011517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111343011917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55671505758 + 55671505759.

It is an arithmetic number, because the mean of its divisors is an integer number (55671505759).

Almost surely, 2^111343011517 is an apocalyptic number.

It is an amenable number.

111343011517 is a deficient number, since it is larger than the sum of its proper divisors (1).

111343011517 is an equidigital number, since it uses as much as digits as its factorization.

111343011517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 111343011517 its reverse (715110343111), we get a palindrome (826453354628).

The spelling of 111343011517 in words is "one hundred eleven billion, three hundred forty-three million, eleven thousand, five hundred seventeen".