11155064311 has 4 divisors (see below), whose sum is σ = 11270065072. Its totient is φ = 11040063552.

The previous prime is 11155064309. The next prime is 11155064317. The reversal of 11155064311 is 11346055111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11346055111 = 16363 ⋅693397.

It is a cyclic number.

It is not a de Polignac number, because 11155064311 - 2¹ = 11155064309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11155064311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155064317) 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 in 3 ways as a sum of consecutive naturals, for example, 57500235 + ... + 57500428.

It is an arithmetic number, because the mean of its divisors is an integer number (2817516268).

Almost surely, 2^11155064311 is an apocalyptic number.

11155064311 is a deficient number, since it is larger than the sum of its proper divisors (115000761).

11155064311 is an equidigital number, since it uses as much as digits as its factorization.

11155064311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115000760.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 11155064311 in words is "eleven billion, one hundred fifty-five million, sixty-four thousand, three hundred eleven".