11355055311 has 16 divisors (see below), whose sum is σ = 15803783424. Its totient is φ = 7238409024.

The previous prime is 11355055307. The next prime is 11355055321.

11355055311 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11355055311 - 2² = 11355055307 is a prime.

It is a super-2 number, since 2×11355055311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11355055321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184795 + ... + 238451.

It is an arithmetic number, because the mean of its divisors is an integer number (987736464).

Almost surely, 2^11355055311 is an apocalyptic number.

11355055311 is a deficient number, since it is larger than the sum of its proper divisors (4448728113).

11355055311 is a wasteful number, since it uses less digits than its factorization.

11355055311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56750.

The product of its (nonzero) digits is 5625, while the sum is 30.

It can be divided in two parts, 113550 and 55311, that added together give a palindrome (168861).

The spelling of 11355055311 in words is "eleven billion, three hundred fifty-five million, fifty-five thousand, three hundred eleven".