11101243999 has 2 divisors, whose sum is σ = 11101244000. Its totient is φ = 11101243998.

The previous prime is 11101243921. The next prime is 11101244029. The reversal of 11101243999 is 99934210111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101243999 - 2²³ = 11092855391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101243799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550621999 + 5550622000.

It is an arithmetic number, because the mean of its divisors is an integer number (5550622000).

Almost surely, 2^11101243999 is an apocalyptic number.

11101243999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101243999 is an equidigital number, since it uses as much as digits as its factorization.

11101243999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 11101243999 in words is "eleven billion, one hundred one million, two hundred forty-three thousand, nine hundred ninety-nine".