31231060012 has 12 divisors (see below), whose sum is σ = 55016305456. Its totient is φ = 15512115600.

The previous prime is 31231059997. The next prime is 31231060031. The reversal of 31231060012 is 21006013213.

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, 25852923 + ... + 25854130.

Almost surely, 2^31231060012 is an apocalyptic number.

It is an amenable number.

31231060012 is a deficient number, since it is larger than the sum of its proper divisors (23785245444).

31231060012 is a wasteful number, since it uses less digits than its factorization.

31231060012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51707208 (or 51707206 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31231060012 its reverse (21006013213), we get a palindrome (52237073225).

The spelling of 31231060012 in words is "thirty-one billion, two hundred thirty-one million, sixty thousand, twelve".