312223312330320 has 80 divisors (see below), whose sum is σ = 968259870741312. Its totient is φ = 83227928232960.

The previous prime is 312223312330309. The next prime is 312223312330367. The reversal of 312223312330320 is 23033213322213.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246411466 + ... + 247675305.

Almost surely, 2^{312223312330320} is an apocalyptic number.

312223312330320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312223312330320 is an abundant number, since it is smaller than the sum of its proper divisors (656036558410992).

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

312223312330320 is a wasteful number, since it uses less digits than its factorization.

312223312330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494089420 (or 494089414 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 312223312330320 its reverse (23033213322213), we get a palindrome (335256525652533).

The spelling of 312223312330320 in words is "three hundred twelve trillion, two hundred twenty-three billion, three hundred twelve million, three hundred thirty thousand, three hundred twenty".