312343311242320 has 160 divisors (see below), whose sum is σ = 743825936093184. Its totient is φ = 121930897920000.

The previous prime is 312343311242317. The next prime is 312343311242399. The reversal of 312343311242320 is 23242113343213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 809693809 + ... + 810079471.

Almost surely, 2^{312343311242320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312343311242320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371912968046592).

312343311242320 is an abundant number, since it is smaller than the sum of its proper divisors (431482624850864).

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

312343311242320 is a wasteful number, since it uses less digits than its factorization.

312343311242320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386741 (or 386735 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 312343311242320 its reverse (23242113343213), we get a palindrome (335585424585533).

The spelling of 312343311242320 in words is "three hundred twelve trillion, three hundred forty-three billion, three hundred eleven million, two hundred forty-two thousand, three hundred twenty".