31442423434 has 8 divisors (see below), whose sum is σ = 47867570208. Its totient is φ = 15486566700.

The previous prime is 31442423339. The next prime is 31442423443. The reversal of 31442423434 is 43432424413.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31442423434.

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, 117322342 + ... + 117322609.

It is an arithmetic number, because the mean of its divisors is an integer number (5983446276).

Almost surely, 2^31442423434 is an apocalyptic number.

31442423434 is a deficient number, since it is larger than the sum of its proper divisors (16425146774).

31442423434 is a wasteful number, since it uses less digits than its factorization.

31442423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234645020.

The product of its digits is 110592, while the sum is 34.

Adding to 31442423434 its reverse (43432424413), we get a palindrome (74874847847).

The spelling of 31442423434 in words is "thirty-one billion, four hundred forty-two million, four hundred twenty-three thousand, four hundred thirty-four".