312310123 has 4 divisors (see below), whose sum is σ = 325888848. Its totient is φ = 298731400.

The previous prime is 312310121. The next prime is 312310139. The reversal of 312310123 is 321013213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321013213 = 2083 ⋅154111.

It is a cyclic number.

It is not a de Polignac number, because 312310123 - 2¹ = 312310121 is a prime.

It is a super-4 number, since 4×312310123⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312310097 and 312310106.

It is not an unprimeable number, because it can be changed into a prime (312310121) 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 3 ways as a sum of consecutive naturals, for example, 6789328 + ... + 6789373.

It is an arithmetic number, because the mean of its divisors is an integer number (81472212).

Almost surely, 2^312310123 is an apocalyptic number.

312310123 is a deficient number, since it is larger than the sum of its proper divisors (13578725).

312310123 is a wasteful number, since it uses less digits than its factorization.

312310123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578724.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 312310123 is about 17672.2981810516. The cubic root of 312310123 is about 678.4669348429.

Adding to 312310123 its reverse (321013213), we get a palindrome (633323336).

The spelling of 312310123 in words is "three hundred twelve million, three hundred ten thousand, one hundred twenty-three".