234111312 has 120 divisors (see below), whose sum is σ = 706829760. Its totient is φ = 72092160.

The previous prime is 234111299. The next prime is 234111329. The reversal of 234111312 is 213111432.

234111312 is a `hidden beast` number, since 2 + 341 + 11 + 312 = 666.

It is a super-2 number, since 2×234111312² = 109616212812722688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111133 + ... + 113219.

It is an arithmetic number, because the mean of its divisors is an integer number (5890248).

Almost surely, 2^234111312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234111312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353414880).

234111312 is an abundant number, since it is smaller than the sum of its proper divisors (472718448).

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

234111312 is a wasteful number, since it uses less digits than its factorization.

234111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2152 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 234111312 is about 15300.6964547370. The cubic root of 234111312 is about 616.3217102934.

Adding to 234111312 its reverse (213111432), we get a palindrome (447222744).

The spelling of 234111312 in words is "two hundred thirty-four million, one hundred eleven thousand, three hundred twelve".