312113123 has 8 divisors (see below), whose sum is σ = 357299040. Its totient is φ = 267076800.

The previous prime is 312113111. The next prime is 312113141. The reversal of 312113123 is 321311213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312113123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312115123) 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, 32888 + ... + 41301.

It is an arithmetic number, because the mean of its divisors is an integer number (44662380).

Almost surely, 2^312113123 is an apocalyptic number.

312113123 is a deficient number, since it is larger than the sum of its proper divisors (45185917).

312113123 is an equidigital number, since it uses as much as digits as its factorization.

312113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74797.

The product of its digits is 108, while the sum is 17.

The square root of 312113123 is about 17666.7236068265. The cubic root of 312113123 is about 678.3242496407.

Adding to 312113123 its reverse (321311213), we get a palindrome (633424336).

The spelling of 312113123 in words is "three hundred twelve million, one hundred thirteen thousand, one hundred twenty-three".