312321124 has 6 divisors (see below), whose sum is σ = 546561974. Its totient is φ = 156160560.

The previous prime is 312321109. The next prime is 312321131. The reversal of 312321124 is 421123213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 274498624 + 37822500 = 16568^2 + 6150^2 .

It is an unprimeable number.

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, 39040137 + ... + 39040144.

Almost surely, 2^312321124 is an apocalyptic number.

It is an amenable number.

312321124 is a deficient number, since it is larger than the sum of its proper divisors (234240850).

312321124 is a wasteful number, since it uses less digits than its factorization.

312321124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78080285 (or 78080283 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 312321124 is about 17672.6094281518. The cubic root of 312321124 is about 678.4749009921.

Adding to 312321124 its reverse (421123213), we get a palindrome (733444337).

It can be divided in two parts, 312321 and 124, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 312321124 in words is "three hundred twelve million, three hundred twenty-one thousand, one hundred twenty-four".