312132123 has 40 divisors (see below), whose sum is σ = 480066048. Its totient is φ = 202008816.

The previous prime is 312132101. The next prime is 312132143. The reversal of 312132123 is 321231213.

It is not a de Polignac number, because 312132123 - 2¹⁸ = 311869979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312132096 and 312132105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132143) 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 in 39 ways as a sum of consecutive naturals, for example, 620290 + ... + 620792.

Almost surely, 2^312132123 is an apocalyptic number.

312132123 is a deficient number, since it is larger than the sum of its proper divisors (167933925).

312132123 is a wasteful number, since it uses less digits than its factorization.

312132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 716 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 312132123 is about 17667.2613327590. The cubic root of 312132123 is about 678.3380137733.

Adding to 312132123 its reverse (321231213), we get a palindrome (633363336).

The spelling of 312132123 in words is "three hundred twelve million, one hundred thirty-two thousand, one hundred twenty-three".