31430231342 has 16 divisors (see below), whose sum is σ = 47251261440. Its totient is φ = 15679844088.

The previous prime is 31430231341. The next prime is 31430231383. The reversal of 31430231342 is 24313203413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31430231341) 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, 2205203 + ... + 2219409.

It is an arithmetic number, because the mean of its divisors is an integer number (2953203840).

Almost surely, 2^31430231342 is an apocalyptic number.

31430231342 is a deficient number, since it is larger than the sum of its proper divisors (15821030098).

31430231342 is a wasteful number, since it uses less digits than its factorization.

31430231342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16615.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31430231342 its reverse (24313203413), we get a palindrome (55743434755).

The spelling of 31430231342 in words is "thirty-one billion, four hundred thirty million, two hundred thirty-one thousand, three hundred forty-two".