31241340012 has 24 divisors (see below), whose sum is σ = 72927691200. Its totient is φ = 10409318416.

The previous prime is 31241339999. The next prime is 31241340037. The reversal of 31241340012 is 21004314213.

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 7 ways as a sum of consecutive naturals, for example, 528462 + ... + 584597.

It is an arithmetic number, because the mean of its divisors is an integer number (3038653800).

Almost surely, 2^31241340012 is an apocalyptic number.

It is an amenable number.

31241340012 is an abundant number, since it is smaller than the sum of its proper divisors (41686351188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31241340012 is a wasteful number, since it uses less digits than its factorization.

31241340012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115405 (or 1115403 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31241340012 its reverse (21004314213), we get a palindrome (52245654225).

The spelling of 31241340012 in words is "thirty-one billion, two hundred forty-one million, three hundred forty thousand, twelve".