1101009999949 has 2 divisors, whose sum is σ = 1101009999950. Its totient is φ = 1101009999948.

The previous prime is 1101009999937. The next prime is 1101009999953. The reversal of 1101009999949 is 9499999001011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665089180900 + 435920819049 = 815530^2 + 660243^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101009999949 - 2⁷ = 1101009999821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101009919949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550504999974 + 550504999975.

It is an arithmetic number, because the mean of its divisors is an integer number (550504999975).

Almost surely, 2^{1101009999949} is an apocalyptic number.

It is an amenable number.

1101009999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101009999949 is an equidigital number, since it uses as much as digits as its factorization.

1101009999949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2125764, while the sum is 61.

The spelling of 1101009999949 in words is "one trillion, one hundred one billion, nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".