233111242 has 64 divisors (see below), whose sum is σ = 463760640. Its totient is φ = 85257216.

The previous prime is 233111239. The next prime is 233111243. The reversal of 233111242 is 242111332.

It is a happy number.

It is a super-2 number, since 2×233111242² = 108681702293565128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233111243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181908 + ... + 183184.

It is an arithmetic number, because the mean of its divisors is an integer number (7246260).

Almost surely, 2^233111242 is an apocalyptic number.

233111242 is a deficient number, since it is larger than the sum of its proper divisors (230649398).

233111242 is a wasteful number, since it uses less digits than its factorization.

233111242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its digits is 288, while the sum is 19.

The square root of 233111242 is about 15267.9809405173. The cubic root of 233111242 is about 615.4428625451.

Adding to 233111242 its reverse (242111332), we get a palindrome (475222574).

It can be divided in two parts, 23 and 3111242, that added together give a triangular number (3111265 = T₂₄₉₄).

The spelling of 233111242 in words is "two hundred thirty-three million, one hundred eleven thousand, two hundred forty-two".