31201342 has 8 divisors (see below), whose sum is σ = 46984896. Its totient is φ = 15539712.

The previous prime is 31201337. The next prime is 31201343. The reversal of 31201342 is 24310213.

It is a happy number.

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 (31201343) by changing a digit.

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, 29838 + ... + 30865.

It is an arithmetic number, because the mean of its divisors is an integer number (5873112).

Almost surely, 2^31201342 is an apocalyptic number.

31201342 is a deficient number, since it is larger than the sum of its proper divisors (15783554).

31201342 is a wasteful number, since it uses less digits than its factorization.

31201342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60962.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31201342 is about 5585.8161444860. The cubic root of 31201342 is about 314.8166969149.

Adding to 31201342 its reverse (24310213), we get a palindrome (55511555).

The spelling of 31201342 in words is "thirty-one million, two hundred one thousand, three hundred forty-two".