31270012 has 6 divisors (see below), whose sum is σ = 54722528. Its totient is φ = 15635004.

The previous prime is 31270009. The next prime is 31270027. The reversal of 31270012 is 21007213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3908748 + ... + 3908755.

Almost surely, 2^31270012 is an apocalyptic number.

It is an amenable number.

31270012 is a deficient number, since it is larger than the sum of its proper divisors (23452516).

31270012 is a wasteful number, since it uses less digits than its factorization.

31270012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817507 (or 7817505 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 31270012 is about 5591.9595849756. The cubic root of 31270012 is about 315.0474842333.

Adding to 31270012 its reverse (21007213), we get a palindrome (52277225).

The spelling of 31270012 in words is "thirty-one million, two hundred seventy thousand, twelve".