312023321330 has 384 divisors, whose sum is σ = 732315893760. Its totient is φ = 93575139840.

The previous prime is 312023321321. The next prime is 312023321333. The reversal of 312023321330 is 33123320213.

It is a junction number, because it is equal to n+sod(n) for n = 312023321296 and 312023321305.

It is not an unprimeable number, because it can be changed into a prime (312023321333) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1987409612 + ... + 1987409768.

It is an arithmetic number, because the mean of its divisors is an integer number (1907072640).

Almost surely, 2^312023321330 is an apocalyptic number.

312023321330 is an abundant number, since it is smaller than the sum of its proper divisors (420292572430).

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

312023321330 is a wasteful number, since it uses less digits than its factorization.

312023321330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 312023321330 its reverse (33123320213), we get a palindrome (345146641543).

The spelling of 312023321330 in words is "three hundred twelve billion, twenty-three million, three hundred twenty-one thousand, three hundred thirty".