312133231230 has 64 divisors (see below), whose sum is σ = 775363233600. Its totient is φ = 80322636800.

The previous prime is 312133231229. The next prime is 312133231271. The reversal of 312133231230 is 32132331213.

It is a self number, because there is not a number n which added to its sum of digits gives 312133231230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1559506 + ... + 1748234.

It is an arithmetic number, because the mean of its divisors is an integer number (12115050525).

Almost surely, 2^312133231230 is an apocalyptic number.

312133231230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312133231230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387681616800).

312133231230 is an abundant number, since it is smaller than the sum of its proper divisors (463230002370).

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

312133231230 is a wasteful number, since it uses less digits than its factorization.

312133231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190669.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 312133231230 its reverse (32132331213), we get a palindrome (344265562443).

The spelling of 312133231230 in words is "three hundred twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred thirty".