234018223111 has 4 divisors (see below), whose sum is σ = 234040082224. Its totient is φ = 233996364000.

The previous prime is 234018223057. The next prime is 234018223133. The reversal of 234018223111 is 111322810432.

234018223111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a 5-Lehmer number, since φ(234018223111) divides (234018223111-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 234018223111 - 2³⁷ = 96579269639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234018223111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234018223811) 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 3 ways as a sum of consecutive naturals, for example, 10913490 + ... + 10934911.

It is an arithmetic number, because the mean of its divisors is an integer number (58510020556).

Almost surely, 2^234018223111 is an apocalyptic number.

234018223111 is the 216342-nd centered decagonal number.

234018223111 is a deficient number, since it is larger than the sum of its proper divisors (21859113).

234018223111 is a wasteful number, since it uses less digits than its factorization.

234018223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21859112.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 234018223111 in words is "two hundred thirty-four billion, eighteen million, two hundred twenty-three thousand, one hundred eleven".