312323021332 has 24 divisors (see below), whose sum is σ = 644795916800. Its totient is φ = 129534893280.

The previous prime is 312323021243. The next prime is 312323021333. The reversal of 312323021332 is 233120323213.

It is a junction number, because it is equal to n+sod(n) for n = 312323021297 and 312323021306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312323021333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 179908707 + ... + 179910442.

Almost surely, 2^312323021332 is an apocalyptic number.

It is an amenable number.

312323021332 is an abundant number, since it is smaller than the sum of its proper divisors (332472895468).

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

312323021332 is a wasteful number, since it uses less digits than its factorization.

312323021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359819191 (or 359819189 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 312323021332 its reverse (233120323213), we get a palindrome (545443344545).

The spelling of 312323021332 in words is "three hundred twelve billion, three hundred twenty-three million, twenty-one thousand, three hundred thirty-two".