111011000010101 has 2 divisors, whose sum is σ = 111011000010102. Its totient is φ = 111011000010100.

The previous prime is 111011000010089. The next prime is 111011000010187. The reversal of 111011000010101 is 101010000110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79885591639876 + 31125408370225 = 8937874^2 + 5579015^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011000010101 - 2⁶ = 111011000010037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111011000015101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505500005050 + 55505500005051.

It is an arithmetic number, because the mean of its divisors is an integer number (55505500005051).

Almost surely, 2^{111011000010101} is an apocalyptic number.

It is an amenable number.

111011000010101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011000010101 is an equidigital number, since it uses as much as digits as its factorization.

111011000010101 is an odious number, because the sum of its binary digits is odd.

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

Adding to 111011000010101 its reverse (101010000110111), we get a palindrome (212021000120212).

The spelling of 111011000010101 in words is "one hundred eleven trillion, eleven billion, ten thousand, one hundred one".