312112320330 has 16 divisors (see below), whose sum is σ = 749069568864. Its totient is φ = 83229952080.

The previous prime is 312112320319. The next prime is 312112320341. The reversal of 312112320330 is 33023211213.

It is an interprime number because it is at equal distance from previous prime (312112320319) and next prime (312112320341).

It is a junction number, because it is equal to n+sod(n) for n = 312112320297 and 312112320306.

It is an unprimeable number.

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, 5201871976 + ... + 5201872035.

It is an arithmetic number, because the mean of its divisors is an integer number (46816848054).

Almost surely, 2^312112320330 is an apocalyptic number.

312112320330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312112320330 is an abundant number, since it is smaller than the sum of its proper divisors (436957248534).

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

312112320330 is a wasteful number, since it uses less digits than its factorization.

312112320330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403744021.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 312112320330 its reverse (33023211213), we get a palindrome (345135531543).

The spelling of 312112320330 in words is "three hundred twelve billion, one hundred twelve million, three hundred twenty thousand, three hundred thirty".