312000412223440 has 80 divisors (see below), whose sum is σ = 742296211430400. Its totient is φ = 121893653822976.

The previous prime is 312000412223417. The next prime is 312000412223509. The reversal of 312000412223440 is 44322214000213.

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

It is a junction number, because it is equal to n+sod(n) for n = 312000412223399 and 312000412223408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99694801 + ... + 102776719.

It is an arithmetic number, because the mean of its divisors is an integer number (9278702642880).

Almost surely, 2^{312000412223440} is an apocalyptic number.

It is an amenable number.

312000412223440 is an abundant number, since it is smaller than the sum of its proper divisors (430295799206960).

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

312000412223440 is a wasteful number, since it uses less digits than its factorization.

312000412223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111404 (or 3111398 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 312000412223440 its reverse (44322214000213), we get a palindrome (356322626223653).

The spelling of 312000412223440 in words is "three hundred twelve trillion, four hundred twelve million, two hundred twenty-three thousand, four hundred forty".