11551110355243 has 2 divisors, whose sum is σ = 11551110355244. Its totient is φ = 11551110355242.

The previous prime is 11551110355241. The next prime is 11551110355273. The reversal of 11551110355243 is 34255301115511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11551110355243 - 2¹ = 11551110355241 is a prime.

Together with 11551110355241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11551110355241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775555177621 + 5775555177622.

It is an arithmetic number, because the mean of its divisors is an integer number (5775555177622).

Almost surely, 2^{11551110355243} is an apocalyptic number.

11551110355243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11551110355243 is an equidigital number, since it uses as much as digits as its factorization.

11551110355243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 11551110355243 in words is "eleven trillion, five hundred fifty-one billion, one hundred ten million, three hundred fifty-five thousand, two hundred forty-three".