111100660529 has 2 divisors, whose sum is σ = 111100660530. Its totient is φ = 111100660528.

The previous prime is 111100660417. The next prime is 111100660571. The reversal of 111100660529 is 925066001111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106442325025 + 4658335504 = 326255^2 + 68252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111100660529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111100660495 and 111100660504.

It is not a weakly prime, because it can be changed into another prime (111100660579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550330264 + 55550330265.

It is an arithmetic number, because the mean of its divisors is an integer number (55550330265).

Almost surely, 2^111100660529 is an apocalyptic number.

It is an amenable number.

111100660529 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100660529 is an equidigital number, since it uses as much as digits as its factorization.

111100660529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 111100660529 in words is "one hundred eleven billion, one hundred million, six hundred sixty thousand, five hundred twenty-nine".