312120002312 has 48 divisors (see below), whose sum is σ = 621946234500. Its totient is φ = 146815921152.

The previous prime is 312120002267. The next prime is 312120002321. The reversal of 312120002312 is 213200021213.

It can be written as a sum of positive squares in 6 ways, for example, as 210528639556 + 101591362756 = 458834^2 + 318734^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5495114 + ... + 5551622.

Almost surely, 2^312120002312 is an apocalyptic number.

It is an amenable number.

312120002312 is a deficient number, since it is larger than the sum of its proper divisors (309826232188).

312120002312 is a wasteful number, since it uses less digits than its factorization.

312120002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58938 (or 58917 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 312120002312 its reverse (213200021213), we get a palindrome (525320023525).

The spelling of 312120002312 in words is "three hundred twelve billion, one hundred twenty million, two thousand, three hundred twelve".