312231320330 has 16 divisors (see below), whose sum is σ = 569932101504. Its totient is φ = 123133478160.

The previous prime is 312231320329. The next prime is 312231320341. The reversal of 312231320330 is 33023132213.

It is a junction number, because it is equal to n+sod(n) for n = 312231320296 and 312231320305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219880502 + ... + 219881921.

It is an arithmetic number, because the mean of its divisors is an integer number (35620756344).

Almost surely, 2^312231320330 is an apocalyptic number.

312231320330 is a deficient number, since it is larger than the sum of its proper divisors (257700781174).

312231320330 is a wasteful number, since it uses less digits than its factorization.

312231320330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439762501.

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

Adding to 312231320330 its reverse (33023132213), we get a palindrome (345254452543).

The spelling of 312231320330 in words is "three hundred twelve billion, two hundred thirty-one million, three hundred twenty thousand, three hundred thirty".