11103343309991 has 2 divisors, whose sum is σ = 11103343309992. Its totient is φ = 11103343309990.

The previous prime is 11103343309979. The next prime is 11103343309999. The reversal of 11103343309991 is 19990334330111.

11103343309991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11103343309991 - 2¹⁴ = 11103343293607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11103343309999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551671654995 + 5551671654996.

It is an arithmetic number, because the mean of its divisors is an integer number (5551671654996).

Almost surely, 2^{11103343309991} is an apocalyptic number.

11103343309991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103343309991 is an equidigital number, since it uses as much as digits as its factorization.

11103343309991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 47.

The spelling of 11103343309991 in words is "eleven trillion, one hundred three billion, three hundred forty-three million, three hundred nine thousand, nine hundred ninety-one".