312331004 has 24 divisors (see below), whose sum is σ = 579292560. Its totient is φ = 146836736.

The previous prime is 312330959. The next prime is 312331009. The reversal of 312331004 is 400133213.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312331009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108674 + ... + 111510.

It is an arithmetic number, because the mean of its divisors is an integer number (24137190).

Almost surely, 2^312331004 is an apocalyptic number.

312331004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

312331004 is a deficient number, since it is larger than the sum of its proper divisors (266961556).

312331004 is a wasteful number, since it uses less digits than its factorization.

312331004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 312331004 is about 17672.8889545541. Note that the first 3 decimals coincide. The cubic root of 312331004 is about 678.4820552326.

Adding to 312331004 its reverse (400133213), we get a palindrome (712464217).

The spelling of 312331004 in words is "three hundred twelve million, three hundred thirty-one thousand, four".