11111000993 has 2 divisors, whose sum is σ = 11111000994. Its totient is φ = 11111000992.

The previous prime is 11111000983. The next prime is 11111001029. The reversal of 11111000993 is 39900011111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7872480529 + 3238520464 = 88727^2 + 56908^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111000993 - 2¹⁰ = 11110999969 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111000963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500496 + 5555500497.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500497).

Almost surely, 2^11111000993 is an apocalyptic number.

It is an amenable number.

11111000993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111000993 is an equidigital number, since it uses as much as digits as its factorization.

11111000993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243, while the sum is 26.

The spelling of 11111000993 in words is "eleven billion, one hundred eleven million, nine hundred ninety-three", and thus it is an aban number.