11211555234 has 64 divisors (see below), whose sum is σ = 24969264768. Its totient is φ = 3327168000.

The previous prime is 11211555227. The next prime is 11211555317. The reversal of 11211555234 is 43255511211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2099632 + ... + 2104964.

It is an arithmetic number, because the mean of its divisors is an integer number (390144762).

Almost surely, 2^11211555234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211555234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12484632384).

11211555234 is an abundant number, since it is smaller than the sum of its proper divisors (13757709534).

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

11211555234 is a wasteful number, since it uses less digits than its factorization.

11211555234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6003.

The product of its digits is 6000, while the sum is 30.

The spelling of 11211555234 in words is "eleven billion, two hundred eleven million, five hundred fifty-five thousand, two hundred thirty-four".