111011000100101 has 2 divisors, whose sum is σ = 111011000100102. Its totient is φ = 111011000100100.

The previous prime is 111011000099957. The next prime is 111011000100109. The reversal of 111011000100101 is 101001000110111.

It is an a-pointer prime, because the next prime (111011000100109) can be obtained adding 111011000100101 to its sum of digits (8).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101735162368225 + 9275837731876 = 10086385^2 + 3045626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111011000100101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011000100109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505500050050 + 55505500050051.

It is an arithmetic number, because the mean of its divisors is an integer number (55505500050051).

Almost surely, 2^{111011000100101} is an apocalyptic number.

It is an amenable number.

111011000100101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011000100101 is an equidigital number, since it uses as much as digits as its factorization.

111011000100101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 111011000100101 its reverse (101001000110111), we get a palindrome (212012000210212).

The spelling of 111011000100101 in words is "one hundred eleven trillion, eleven billion, one hundred thousand, one hundred one".