31504431342 has 16 divisors (see below), whose sum is σ = 64474185600. Its totient is φ = 10257256632.

The previous prime is 31504431341. The next prime is 31504431347. The reversal of 31504431342 is 24313440513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31504431341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61054842 + ... + 61055357.

It is an arithmetic number, because the mean of its divisors is an integer number (4029636600).

Almost surely, 2^31504431342 is an apocalyptic number.

31504431342 is an abundant number, since it is smaller than the sum of its proper divisors (32969754258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31504431342 is a wasteful number, since it uses less digits than its factorization.

31504431342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122110247.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 31504431342 its reverse (24313440513), we get a palindrome (55817871855).

The spelling of 31504431342 in words is "thirty-one billion, five hundred four million, four hundred thirty-one thousand, three hundred forty-two".