111101101101149 has 2 divisors, whose sum is σ = 111101101101150. Its totient is φ = 111101101101148.

The previous prime is 111101101101017. The next prime is 111101101101163. The reversal of 111101101101149 is 941101101101111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108020830396249 + 3080270704900 = 10393307^2 + 1755070^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101101101149 - 2⁸ = 111101101100893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111101101101169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550550550574 + 55550550550575.

It is an arithmetic number, because the mean of its divisors is an integer number (55550550550575).

Almost surely, 2^{111101101101149} is an apocalyptic number.

It is an amenable number.

111101101101149 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101101101149 is an equidigital number, since it uses as much as digits as its factorization.

111101101101149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 23.

The spelling of 111101101101149 in words is "one hundred eleven trillion, one hundred one billion, one hundred one million, one hundred one thousand, one hundred forty-nine".