11155042234 has 24 divisors (see below), whose sum is σ = 20182380768. Its totient is φ = 4529112840.

The previous prime is 11155042153. The next prime is 11155042237. The reversal of 11155042234 is 43224055111.

It is not an unprimeable number, because it can be changed into a prime (11155042237) 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 11 ways as a sum of consecutive naturals, for example, 1098532 + ... + 1108639.

It is an arithmetic number, because the mean of its divisors is an integer number (840932532).

Almost surely, 2^11155042234 is an apocalyptic number.

11155042234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11155042234 is a deficient number, since it is larger than the sum of its proper divisors (9027338534).

11155042234 is a wasteful number, since it uses less digits than its factorization.

11155042234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207218 (or 2207199 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 11155042234 its reverse (43224055111), we get a palindrome (54379097345).

The spelling of 11155042234 in words is "eleven billion, one hundred fifty-five million, forty-two thousand, two hundred thirty-four".