31342012 has 48 divisors (see below), whose sum is σ = 61471872. Its totient is φ = 13890240.

The previous prime is 31342009. The next prime is 31342021. The reversal of 31342012 is 21024313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 239187 + ... + 239317.

It is an arithmetic number, because the mean of its divisors is an integer number (1280664).

Almost surely, 2^31342012 is an apocalyptic number.

It is an amenable number.

31342012 is a deficient number, since it is larger than the sum of its proper divisors (30129860).

31342012 is a wasteful number, since it uses less digits than its factorization.

31342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 296 counting only the distinct ones).

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

The square root of 31342012 is about 5598.3936981959. The cubic root of 31342012 is about 315.2891005075.

Adding to 31342012 its reverse (21024313), we get a palindrome (52366325).

The spelling of 31342012 in words is "thirty-one million, three hundred forty-two thousand, twelve".