312321104 has 10 divisors (see below), whose sum is σ = 605122170. Its totient is φ = 156160544.

The previous prime is 312321077. The next prime is 312321109. The reversal of 312321104 is 401123213.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 150013504 = 12740^2 + 12248^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9760019 + ... + 9760050.

It is an arithmetic number, because the mean of its divisors is an integer number (60512217).

Almost surely, 2^312321104 is an apocalyptic number.

It is an amenable number.

312321104 is a deficient number, since it is larger than the sum of its proper divisors (292801066).

312321104 is a wasteful number, since it uses less digits than its factorization.

312321104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19520077 (or 19520071 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 312321104 is about 17672.6088623044. The cubic root of 312321104 is about 678.4748865097.

Adding to 312321104 its reverse (401123213), we get a palindrome (713444317).

The spelling of 312321104 in words is "three hundred twelve million, three hundred twenty-one thousand, one hundred four".