312231020312 has 8 divisors (see below), whose sum is σ = 585433163100. Its totient is φ = 156115510152.

The previous prime is 312231020281. The next prime is 312231020327. The reversal of 312231020312 is 213020132213.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 19514438762 + ... + 19514438777.

Almost surely, 2^312231020312 is an apocalyptic number.

It is an amenable number.

312231020312 is a deficient number, since it is larger than the sum of its proper divisors (273202142788).

312231020312 is a wasteful number, since it uses less digits than its factorization.

312231020312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39028877545 (or 39028877541 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312231020312 its reverse (213020132213), we get a palindrome (525251152525).

The spelling of 312231020312 in words is "three hundred twelve billion, two hundred thirty-one million, twenty thousand, three hundred twelve".