312133224280 has 32 divisors (see below), whose sum is σ = 712781846640. Its totient is φ = 122989806720.

The previous prime is 312133224233. The next prime is 312133224281. The reversal of 312133224280 is 82422331213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133224281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58231131 + ... + 58236490.

Almost surely, 2^312133224280 is an apocalyptic number.

It is an amenable number.

312133224280 is an abundant number, since it is smaller than the sum of its proper divisors (400648622360).

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

312133224280 is a wasteful number, since it uses less digits than its factorization.

312133224280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116467699 (or 116467695 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 312133224280 its reverse (82422331213), we get a palindrome (394555555493).

The spelling of 312133224280 in words is "three hundred twelve billion, one hundred thirty-three million, two hundred twenty-four thousand, two hundred eighty".