3121244312 has 32 divisors (see below), whose sum is σ = 5951614320. Its totient is φ = 1534241280.

The previous prime is 3121244257. The next prime is 3121244317. The reversal of 3121244312 is 2134421213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121244317) by changing a digit.

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, 273668 + ... + 284844.

Almost surely, 2^3121244312 is an apocalyptic number.

It is an amenable number.

3121244312 is a deficient number, since it is larger than the sum of its proper divisors (2830370008).

3121244312 is a wasteful number, since it uses less digits than its factorization.

3121244312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11771 (or 11767 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 3121244312 is about 55868.0974438901. The cubic root of 3121244312 is about 1461.4229437404.

Adding to 3121244312 its reverse (2134421213), we get a palindrome (5255665525).

The spelling of 3121244312 in words is "three billion, one hundred twenty-one million, two hundred forty-four thousand, three hundred twelve".