31444225012 has 12 divisors (see below), whose sum is σ = 55447451136. Its totient is φ = 15602096120.

The previous prime is 31444224979. The next prime is 31444225013. The reversal of 31444225012 is 21052244413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444225013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30003508 + ... + 30004555.

It is an arithmetic number, because the mean of its divisors is an integer number (4620620928).

Almost surely, 2^31444225012 is an apocalyptic number.

It is an amenable number.

31444225012 is a deficient number, since it is larger than the sum of its proper divisors (24003226124).

31444225012 is a wasteful number, since it uses less digits than its factorization.

31444225012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60008198 (or 60008196 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 31444225012 its reverse (21052244413), we get a palindrome (52496469425).

The spelling of 31444225012 in words is "thirty-one billion, four hundred forty-four million, two hundred twenty-five thousand, twelve".