312322113220 has 48 divisors (see below), whose sum is σ = 706684048560. Its totient is φ = 115260880896.

The previous prime is 312322113179. The next prime is 312322113227. The reversal of 312322113220 is 22311223213.

It can be written as a sum of positive squares in 8 ways, for example, as 21341703744 + 290980409476 = 146088^2 + 539426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312322113191 and 312322113200.

It is not an unprimeable number, because it can be changed into a prime (312322113227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216816 + ... + 819544.

It is an arithmetic number, because the mean of its divisors is an integer number (14722584345).

Almost surely, 2^312322113220 is an apocalyptic number.

It is an amenable number.

312322113220 is an abundant number, since it is smaller than the sum of its proper divisors (394361935340).

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

312322113220 is a wasteful number, since it uses less digits than its factorization.

312322113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604744 (or 604742 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312322113220 its reverse (22311223213), we get a palindrome (334633336433).

It can be divided in two parts, 3123221 and 13220, that added together give a square (3136441 = 1771²).

The spelling of 312322113220 in words is "three hundred twelve billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred twenty".