31124441212 has 12 divisors (see below), whose sum is σ = 54624742200. Its totient is φ = 15517372016.

The previous prime is 31124441209. The next prime is 31124441237. The reversal of 31124441212 is 21214442113.

It is a congruent number.

It is an unprimeable number.

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, 11210587 + ... + 11213362.

It is an arithmetic number, because the mean of its divisors is an integer number (4552061850).

Almost surely, 2^31124441212 is an apocalyptic number.

It is an amenable number.

31124441212 is a deficient number, since it is larger than the sum of its proper divisors (23500300988).

31124441212 is a wasteful number, since it uses less digits than its factorization.

31124441212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22424300 (or 22424298 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

Adding to 31124441212 its reverse (21214442113), we get a palindrome (52338883325).

Subtracting from 31124441212 its reverse (21214442113), we obtain a palindrome (9909999099).

The spelling of 31124441212 in words is "thirty-one billion, one hundred twenty-four million, four hundred forty-one thousand, two hundred twelve".