111101050513 has 2 divisors, whose sum is σ = 111101050514. Its totient is φ = 111101050512.

The previous prime is 111101050499. The next prime is 111101050549. The reversal of 111101050513 is 315050101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105828547969 + 5272502544 = 325313^2 + 72612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111101050513 is a prime.

It is not a weakly prime, because it can be changed into another prime (111101050573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550525256 + 55550525257.

It is an arithmetic number, because the mean of its divisors is an integer number (55550525257).

Almost surely, 2^111101050513 is an apocalyptic number.

It is an amenable number.

111101050513 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101050513 is an equidigital number, since it uses as much as digits as its factorization.

111101050513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75, while the sum is 19.

Adding to 111101050513 its reverse (315050101111), we get a palindrome (426151151624).

The spelling of 111101050513 in words is "one hundred eleven billion, one hundred one million, fifty thousand, five hundred thirteen".