231331111442 has 8 divisors (see below), whose sum is σ = 346998992256. Its totient is φ = 115664780692.

The previous prime is 231331111439. The next prime is 231331111469. The reversal of 231331111442 is 244111133132.

231331111442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116903 + ... + 690165.

It is an arithmetic number, because the mean of its divisors is an integer number (43374874032).

Almost surely, 2^231331111442 is an apocalyptic number.

231331111442 is a deficient number, since it is larger than the sum of its proper divisors (115667880814).

231331111442 is a wasteful number, since it uses less digits than its factorization.

231331111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775032.

The product of its digits is 1728, while the sum is 26.

Adding to 231331111442 its reverse (244111133132), we get a palindrome (475442244574).

The spelling of 231331111442 in words is "two hundred thirty-one billion, three hundred thirty-one million, one hundred eleven thousand, four hundred forty-two".