3121132312 has 8 divisors (see below), whose sum is σ = 5852123100. Its totient is φ = 1560566152.

The previous prime is 3121132291. The next prime is 3121132319. The reversal of 3121132312 is 2132311213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3121132312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121132319) 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 as a sum of consecutive naturals, namely, 195070762 + ... + 195070777.

Almost surely, 2^3121132312 is an apocalyptic number.

It is an amenable number.

3121132312 is a deficient number, since it is larger than the sum of its proper divisors (2730990788).

3121132312 is a wasteful number, since it uses less digits than its factorization.

3121132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390141545 (or 390141541 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 3121132312 is about 55867.0950739342. The cubic root of 3121132312 is about 1461.4054633906.

Adding to 3121132312 its reverse (2132311213), we get a palindrome (5253443525).

The spelling of 3121132312 in words is "three billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred twelve".