11550455123311 has 4 divisors (see below), whose sum is σ = 12438951671272. Its totient is φ = 10661958575352.

The previous prime is 11550455123257. The next prime is 11550455123327. The reversal of 11550455123311 is 11332155405511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11550455123311 - 2¹¹ = 11550455121263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550455123351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444248273961 + ... + 444248273986.

It is an arithmetic number, because the mean of its divisors is an integer number (3109737917818).

Almost surely, 2^{11550455123311} is an apocalyptic number.

11550455123311 is a deficient number, since it is larger than the sum of its proper divisors (888496547961).

11550455123311 is an equidigital number, since it uses as much as digits as its factorization.

11550455123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888496547960.

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

The spelling of 11550455123311 in words is "eleven trillion, five hundred fifty billion, four hundred fifty-five million, one hundred twenty-three thousand, three hundred eleven".