3131103312 has 60 divisors (see below), whose sum is σ = 8829684864. Its totient is φ = 1035727680.

The previous prime is 3131103277. The next prime is 3131103317. The reversal of 3131103312 is 2133011313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131103317) 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 11 ways as a sum of consecutive naturals, for example, 64128 + ... + 101855.

Almost surely, 2^3131103312 is an apocalyptic number.

It is an amenable number.

3131103312 is an abundant number, since it is smaller than the sum of its proper divisors (5698581552).

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

3131103312 is a wasteful number, since it uses less digits than its factorization.

3131103312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166128 (or 166119 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3131103312 is about 55956.2624913423. The cubic root of 3131103312 is about 1462.9600470751.

Adding to 3131103312 its reverse (2133011313), we get a palindrome (5264114625).

The spelling of 3131103312 in words is "three billion, one hundred thirty-one million, one hundred three thousand, three hundred twelve".