312123231320000 has 70 divisors (see below), whose sum is σ = 773964173722608. Its totient is φ = 124849292512000.

The previous prime is 312123231319997. The next prime is 312123231320111. The reversal of 312123231320000 is 23132321213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3901500392 + ... + 3901580391.

Almost surely, 2^{312123231320000} is an apocalyptic number.

It is an amenable number.

312123231320000 is an abundant number, since it is smaller than the sum of its proper divisors (461840942402608).

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

312123231320000 is an frugal number, since it uses more digits than its factorization.

312123231320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7803080815 (or 7803080790 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312123231320000 its reverse (23132321213), we get a palindrome (312146363641213).

The spelling of 312123231320000 in words is "three hundred twelve trillion, one hundred twenty-three billion, two hundred thirty-one million, three hundred twenty thousand".