233531042 has 4 divisors (see below), whose sum is σ = 350296566. Its totient is φ = 116765520.

The previous prime is 233531021. The next prime is 233531059. The reversal of 233531042 is 240135332.

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

It can be written as a sum of positive squares in only one way, i.e., 228947161 + 4583881 = 15131^2 + 2141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233530999 and 233531017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58382759 + ... + 58382762.

Almost surely, 2^233531042 is an apocalyptic number.

233531042 is a deficient number, since it is larger than the sum of its proper divisors (116765524).

233531042 is a wasteful number, since it uses less digits than its factorization.

233531042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116765523.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 233531042 is about 15281.7224814482. The cubic root of 233531042 is about 615.8120825148.

Adding to 233531042 its reverse (240135332), we get a palindrome (473666374).

The spelling of 233531042 in words is "two hundred thirty-three million, five hundred thirty-one thousand, forty-two".