31403320342 has 8 divisors (see below), whose sum is σ = 49153023216. Its totient is φ = 15018979272.

The previous prime is 31403320321. The next prime is 31403320343. The reversal of 31403320342 is 24302330413.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31403320343) 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 3 ways as a sum of consecutive naturals, for example, 341340393 + ... + 341340484.

It is an arithmetic number, because the mean of its divisors is an integer number (6144127902).

Almost surely, 2^31403320342 is an apocalyptic number.

31403320342 is a deficient number, since it is larger than the sum of its proper divisors (17749702874).

31403320342 is a wasteful number, since it uses less digits than its factorization.

31403320342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682680902.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31403320342 its reverse (24302330413), we get a palindrome (55705650755).

The spelling of 31403320342 in words is "thirty-one billion, four hundred three million, three hundred twenty thousand, three hundred forty-two".