31422431343 has 8 divisors (see below), whose sum is σ = 42787991808. Its totient is φ = 20502579224.

The previous prime is 31422431329. The next prime is 31422431351. The reversal of 31422431343 is 34313422413.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31422431343 - 2¹⁸ = 31422169199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31422431343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422431353) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 111426921 + ... + 111427202.

It is an arithmetic number, because the mean of its divisors is an integer number (5348498976).

Almost surely, 2^31422431343 is an apocalyptic number.

31422431343 is a deficient number, since it is larger than the sum of its proper divisors (11365560465).

31422431343 is a wasteful number, since it uses less digits than its factorization.

31422431343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222854173.

The product of its digits is 20736, while the sum is 30.

Adding to 31422431343 its reverse (34313422413), we get a palindrome (65735853756).

The spelling of 31422431343 in words is "thirty-one billion, four hundred twenty-two million, four hundred thirty-one thousand, three hundred forty-three".