111130123218137 has 2 divisors, whose sum is σ = 111130123218138. Its totient is φ = 111130123218136.

The previous prime is 111130123218131. The next prime is 111130123218161. The reversal of 111130123218137 is 731812321031111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73690275164416 + 37439848053721 = 8584304^2 + 6118811^2 .

It is an emirp because it is prime and its reverse (731812321031111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111130123218137 - 2³² = 111125828250841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111130123218097 and 111130123218106.

It is not a weakly prime, because it can be changed into another prime (111130123218131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55565061609068 + 55565061609069.

It is an arithmetic number, because the mean of its divisors is an integer number (55565061609069).

Almost surely, 2^{111130123218137} is an apocalyptic number.

It is an amenable number.

111130123218137 is a deficient number, since it is larger than the sum of its proper divisors (1).

111130123218137 is an equidigital number, since it uses as much as digits as its factorization.

111130123218137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 35.

Adding to 111130123218137 its reverse (731812321031111), we get a palindrome (842942444249248).

The spelling of 111130123218137 in words is "one hundred eleven trillion, one hundred thirty billion, one hundred twenty-three million, two hundred eighteen thousand, one hundred thirty-seven".