312443324200420 has 192 divisors, whose sum is σ = 789880392032256. Its totient is φ = 101498898124800.

The previous prime is 312443324200369. The next prime is 312443324200457. The reversal of 312443324200420 is 24002423344213.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 170725467 + ... + 172545853.

It is an arithmetic number, because the mean of its divisors is an integer number (4113960375168).

Almost surely, 2^{312443324200420} 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 312443324200420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394940196016128).

312443324200420 is an abundant number, since it is smaller than the sum of its proper divisors (477437067831836).

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

312443324200420 is a wasteful number, since it uses less digits than its factorization.

312443324200420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820930 (or 1820928 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 312443324200420 its reverse (24002423344213), we get a palindrome (336445747544633).

The spelling of 312443324200420 in words is "three hundred twelve trillion, four hundred forty-three billion, three hundred twenty-four million, two hundred thousand, four hundred twenty".