312123300 has 36 divisors (see below), whose sum is σ = 903077616. Its totient is φ = 83232800.

The previous prime is 312123257. The next prime is 312123311. The reversal of 312123300 is 3321213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 312123300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519906 + ... + 520505.

Almost surely, 2^312123300 is an apocalyptic number.

312123300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312123300 is an abundant number, since it is smaller than the sum of its proper divisors (590954316).

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

312123300 is a wasteful number, since it uses less digits than its factorization.

312123300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040428 (or 1040421 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 312123300 is about 17667.0116318522. The cubic root of 312123300 is about 678.3316222143.

Adding to 312123300 its reverse (3321213), we get a palindrome (315444513).

The spelling of 312123300 in words is "three hundred twelve million, one hundred twenty-three thousand, three hundred".