31130342 has 8 divisors (see below), whose sum is σ = 46736976. Its totient is φ = 15551352.

The previous prime is 31130327. The next prime is 31130353. The reversal of 31130342 is 24303113.

It is a happy number.

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 31130342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818 + ... + 8765.

It is an arithmetic number, because the mean of its divisors is an integer number (5842122).

Almost surely, 2^31130342 is an apocalyptic number.

31130342 is a deficient number, since it is larger than the sum of its proper divisors (15606634).

31130342 is a wasteful number, since it uses less digits than its factorization.

31130342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13822.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31130342 is about 5579.4571420524. The cubic root of 31130342 is about 314.5777225651.

Adding to 31130342 its reverse (24303113), we get a palindrome (55433455).

The spelling of 31130342 in words is "thirty-one million, one hundred thirty thousand, three hundred forty-two".