223131234 has 64 divisors (see below), whose sum is σ = 478679040. Its totient is φ = 69189120.

The previous prime is 223131187. The next prime is 223131247. The reversal of 223131234 is 432131322.

223131234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223131234³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223131234.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1057389 + ... + 1057599.

It is an arithmetic number, because the mean of its divisors is an integer number (7479360).

Almost surely, 2^223131234 is an apocalyptic number.

223131234 is an abundant number, since it is smaller than the sum of its proper divisors (255547806).

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

223131234 is a wasteful number, since it uses less digits than its factorization.

223131234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 864, while the sum is 21.

The square root of 223131234 is about 14937.5779161148. The cubic root of 223131234 is about 606.5316327215.

Adding to 223131234 its reverse (432131322), we get a palindrome (655262556).

The spelling of 223131234 in words is "two hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty-four".