11201993819 has 2 divisors, whose sum is σ = 11201993820. Its totient is φ = 11201993818.

The previous prime is 11201993749. The next prime is 11201993827. The reversal of 11201993819 is 91839910211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11201993819 - 2⁸ = 11201993563 is a prime.

It is a super-2 number, since 2×11201993819² (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 11201993819.

It is not a weakly prime, because it can be changed into another prime (11201993219) 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, 5600996909 + 5600996910.

It is an arithmetic number, because the mean of its divisors is an integer number (5600996910).

Almost surely, 2^11201993819 is an apocalyptic number.

11201993819 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201993819 is an equidigital number, since it uses as much as digits as its factorization.

11201993819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 44.

The spelling of 11201993819 in words is "eleven billion, two hundred one million, nine hundred ninety-three thousand, eight hundred nineteen".