312421024 has 12 divisors (see below), whose sum is σ = 615078954. Its totient is φ = 156210496.

The previous prime is 312421003. The next prime is 312421027. The reversal of 312421024 is 420124213.

It can be written as a sum of positive squares in only one way, i.e., 305131024 + 7290000 = 17468^2 + 2700^2 .

It is a super-3 number, since 3×312421024³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312420992 and 312421010.

It is not an unprimeable number, because it can be changed into a prime (312421027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4881547 + ... + 4881610.

Almost surely, 2^312421024 is an apocalyptic number.

It is an amenable number.

312421024 is a deficient number, since it is larger than the sum of its proper divisors (302657930).

312421024 is an equidigital number, since it uses as much as digits as its factorization.

312421024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9763167 (or 9763159 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 312421024 is about 17675.4356099079. The cubic root of 312421024 is about 678.5472329734.

Adding to 312421024 its reverse (420124213), we get a palindrome (732545237).

The spelling of 312421024 in words is "three hundred twelve million, four hundred twenty-one thousand, twenty-four".