11155343331 has 16 divisors (see below), whose sum is σ = 16228631808. Its totient is φ = 6759698400.

The previous prime is 11155343293. The next prime is 11155343347. The reversal of 11155343331 is 13334355111.

11155343331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11155343331 - 2¹⁴ = 11155326947 is a prime.

It is a super-2 number, since 2×11155343331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11155343351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203826 + ... + 252696.

It is an arithmetic number, because the mean of its divisors is an integer number (1014289488).

Almost surely, 2^11155343331 is an apocalyptic number.

11155343331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11155343331 is a deficient number, since it is larger than the sum of its proper divisors (5073288477).

11155343331 is a wasteful number, since it uses less digits than its factorization.

11155343331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55802.

The product of its digits is 8100, while the sum is 30.

Adding to 11155343331 its reverse (13334355111), we get a palindrome (24489698442).

The spelling of 11155343331 in words is "eleven billion, one hundred fifty-five million, three hundred forty-three thousand, three hundred thirty-one".