312220310330 has 8 divisors (see below), whose sum is σ = 561996558612. Its totient is φ = 124888124128.

The previous prime is 312220310321. The next prime is 312220310341. The reversal of 312220310330 is 33013022213.

It can be written as a sum of positive squares in 2 ways, for example, as 294483131569 + 17737178761 = 542663^2 + 133181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×312220310330³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15611015507 + ... + 15611015526.

Almost surely, 2^312220310330 is an apocalyptic number.

312220310330 is a deficient number, since it is larger than the sum of its proper divisors (249776248282).

312220310330 is a wasteful number, since it uses less digits than its factorization.

312220310330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31222031040.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 312220310330 its reverse (33013022213), we get a palindrome (345233332543).

The spelling of 312220310330 in words is "three hundred twelve billion, two hundred twenty million, three hundred ten thousand, three hundred thirty".