1000111999949 has 2 divisors, whose sum is σ = 1000111999950. Its totient is φ = 1000111999948.

The previous prime is 1000111999937. The next prime is 1000111999993. The reversal of 1000111999949 is 9499991110001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 959923779049 + 40188220900 = 979757^2 + 200470^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000111999949 - 2¹² = 1000111995853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000111999949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000111959949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055999974 + 500055999975.

It is an arithmetic number, because the mean of its divisors is an integer number (500055999975).

Almost surely, 2^{1000111999949} is an apocalyptic number.

It is an amenable number.

1000111999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000111999949 is an equidigital number, since it uses as much as digits as its factorization.

1000111999949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 53.

The spelling of 1000111999949 in words is "one trillion, one hundred eleven million, nine hundred ninety-nine thousand, nine hundred forty-nine".