312303232440320 has 144 divisors (see below), whose sum is σ = 823659954521040. Its totient is φ = 113564811345920.

The previous prime is 312303232440307. The next prime is 312303232440361. The reversal of 312303232440320 is 23044232303213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124787252 + ... + 127265331.

It is an arithmetic number, because the mean of its divisors is an integer number (5719860795285).

Almost surely, 2^{312303232440320} is an apocalyptic number.

It is an amenable number.

312303232440320 is an abundant number, since it is smaller than the sum of its proper divisors (511356722080720).

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

312303232440320 is a wasteful number, since it uses less digits than its factorization.

312303232440320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252052632 (or 252052601 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 312303232440320 its reverse (23044232303213), we get a palindrome (335347464743533).

The spelling of 312303232440320 in words is "three hundred twelve trillion, three hundred three billion, two hundred thirty-two million, four hundred forty thousand, three hundred twenty".