312000022320 has 160 divisors (see below), whose sum is σ = 1105579238400. Its totient is φ = 71300889600.

The previous prime is 312000022277. The next prime is 312000022337. The reversal of 312000022320 is 23220000213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 312000022320.

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, 10991506 + ... + 11019854.

It is an arithmetic number, because the mean of its divisors is an integer number (6909870240).

Almost surely, 2^312000022320 is an apocalyptic number.

312000022320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312000022320 is an abundant number, since it is smaller than the sum of its proper divisors (793579216080).

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

312000022320 is a wasteful number, since it uses less digits than its factorization.

312000022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34923 (or 34917 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 312000022320 its reverse (23220000213), we get a palindrome (335220022533).

The spelling of 312000022320 in words is "three hundred twelve billion, twenty-two thousand, three hundred twenty".