404231131342 has 4 divisors (see below), whose sum is σ = 606346697016. Its totient is φ = 202115565670.

The previous prime is 404231131321. The next prime is 404231131391. The reversal of 404231131342 is 243131132404.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 404231131342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101057782834 + ... + 101057782837.

It is an arithmetic number, because the mean of its divisors is an integer number (151586674254).

Almost surely, 2^404231131342 is an apocalyptic number.

404231131342 is a deficient number, since it is larger than the sum of its proper divisors (202115565674).

404231131342 is a wasteful number, since it uses less digits than its factorization.

404231131342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202115565673.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 404231131342 its reverse (243131132404), we get a palindrome (647362263746).

The spelling of 404231131342 in words is "four hundred four billion, two hundred thirty-one million, one hundred thirty-one thousand, three hundred forty-two".