111101001099901 has 2 divisors, whose sum is σ = 111101001099902. Its totient is φ = 111101001099900.

The previous prime is 111101001099877. The next prime is 111101001099967. The reversal of 111101001099901 is 109990100101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92488593175801 + 18612407924100 = 9617099^2 + 4314210^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101001099901 - 2²⁹ = 111100464228989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101001099971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550500549950 + 55550500549951.

It is an arithmetic number, because the mean of its divisors is an integer number (55550500549951).

Almost surely, 2^{111101001099901} is an apocalyptic number.

It is an amenable number.

111101001099901 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101001099901 is an equidigital number, since it uses as much as digits as its factorization.

111101001099901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 34.

The spelling of 111101001099901 in words is "one hundred eleven trillion, one hundred one billion, one million, ninety-nine thousand, nine hundred one".