233131042 has 4 divisors (see below), whose sum is σ = 349696566. Its totient is φ = 116565520.

The previous prime is 233131039. The next prime is 233131049. The reversal of 233131042 is 240131332.

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., 156025081 + 77105961 = 12491^2 + 8781^2 .

It is not an unprimeable number, because it can be changed into a prime (233131049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58282759 + ... + 58282762.

Almost surely, 2^233131042 is an apocalyptic number.

233131042 is a deficient number, since it is larger than the sum of its proper divisors (116565524).

233131042 is a wasteful number, since it uses less digits than its factorization.

233131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116565523.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 233131042 is about 15268.6293425441. The cubic root of 233131042 is about 615.4602868781.

Adding to 233131042 its reverse (240131332), we get a palindrome (473262374).

The spelling of 233131042 in words is "two hundred thirty-three million, one hundred thirty-one thousand, forty-two".