11550321234 has 24 divisors (see below), whose sum is σ = 25054728192. Its totient is φ = 3845640600.

The previous prime is 11550321199. The next prime is 11550321239. The reversal of 11550321234 is 43212305511.

11550321234 is a `hidden beast` number, since 115 + 503 + 2 + 12 + 34 = 666.

11550321234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11550321198 and 11550321207.

It is not an unprimeable number, because it can be changed into a prime (11550321239) 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 11 ways as a sum of consecutive naturals, for example, 356242 + ... + 387309.

It is an arithmetic number, because the mean of its divisors is an integer number (1043947008).

Almost surely, 2^11550321234 is an apocalyptic number.

11550321234 is an abundant number, since it is smaller than the sum of its proper divisors (13504406958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11550321234 is a wasteful number, since it uses less digits than its factorization.

11550321234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744422 (or 744419 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 11550321234 its reverse (43212305511), we get a palindrome (54762626745).

The spelling of 11550321234 in words is "eleven billion, five hundred fifty million, three hundred twenty-one thousand, two hundred thirty-four".