312104123 has 4 divisors (see below), whose sum is σ = 313738368. Its totient is φ = 310469880.

The previous prime is 312104101. The next prime is 312104197. The reversal of 312104123 is 321401213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321401213 = 7 ⋅45914459.

It is a cyclic number.

It is not a de Polignac number, because 312104123 - 2⁶ = 312104059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312104323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816836 + ... + 817217.

It is an arithmetic number, because the mean of its divisors is an integer number (78434592).

Almost surely, 2^312104123 is an apocalyptic number.

312104123 is a deficient number, since it is larger than the sum of its proper divisors (1634245).

312104123 is a wasteful number, since it uses less digits than its factorization.

312104123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634244.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 312104123 is about 17666.4688888300. The cubic root of 312104123 is about 678.3177295935.

Adding to 312104123 its reverse (321401213), we get a palindrome (633505336).

The spelling of 312104123 in words is "three hundred twelve million, one hundred four thousand, one hundred twenty-three".