312404222320 has 80 divisors (see below), whose sum is σ = 789851374848. Its totient is φ = 114432307200.

The previous prime is 312404222219. The next prime is 312404222353. The reversal of 312404222320 is 23222404213.

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

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, 3053856 + ... + 3154495.

Almost surely, 2^312404222320 is an apocalyptic number.

It is an amenable number.

312404222320 is an abundant number, since it is smaller than the sum of its proper divisors (477447152528).

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

312404222320 is a wasteful number, since it uses less digits than its factorization.

312404222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6208418 (or 6208412 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 312404222320 its reverse (23222404213), we get a palindrome (335626626533).

The spelling of 312404222320 in words is "three hundred twelve billion, four hundred four million, two hundred twenty-two thousand, three hundred twenty".