11111099873 has 2 divisors, whose sum is σ = 11111099874. Its totient is φ = 11111099872.

The previous prime is 11111099843. The next prime is 11111099897. The reversal of 11111099873 is 37899011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8402105569 + 2708994304 = 91663^2 + 52048^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111099873 - 2⁶ = 11111099809 is a prime.

It is a super-2 number, since 2×11111099873² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11111099873.

It is not a weakly prime, because it can be changed into another prime (11111099833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555549936 + 5555549937.

It is an arithmetic number, because the mean of its divisors is an integer number (5555549937).

Almost surely, 2^11111099873 is an apocalyptic number.

It is an amenable number.

11111099873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111099873 is an equidigital number, since it uses as much as digits as its factorization.

11111099873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 41.

The spelling of 11111099873 in words is "eleven billion, one hundred eleven million, ninety-nine thousand, eight hundred seventy-three".