11032443991 has 2 divisors, whose sum is σ = 11032443992. Its totient is φ = 11032443990.

The previous prime is 11032443977. The next prime is 11032444097. The reversal of 11032443991 is 19934423011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11032443991 - 2¹¹ = 11032441943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11032443991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11032443901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5516221995 + 5516221996.

It is an arithmetic number, because the mean of its divisors is an integer number (5516221996).

Almost surely, 2^11032443991 is an apocalyptic number.

11032443991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11032443991 is an equidigital number, since it uses as much as digits as its factorization.

11032443991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 11032443991 in words is "eleven billion, thirty-two million, four hundred forty-three thousand, nine hundred ninety-one".