11200203991 has 2 divisors, whose sum is σ = 11200203992. Its totient is φ = 11200203990.

The previous prime is 11200203983. The next prime is 11200203997. The reversal of 11200203991 is 19930200211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11200203991 - 2³ = 11200203983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11200203997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600101995 + 5600101996.

It is an arithmetic number, because the mean of its divisors is an integer number (5600101996).

Almost surely, 2^11200203991 is an apocalyptic number.

11200203991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11200203991 is an equidigital number, since it uses as much as digits as its factorization.

11200203991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 11200203991 in words is "eleven billion, two hundred million, two hundred three thousand, nine hundred ninety-one".