312112123 has 8 divisors (see below), whose sum is σ = 333290880. Its totient is φ = 291627840.

The previous prime is 312112109. The next prime is 312112159. The reversal of 312112123 is 321211213.

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-312112123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312112097 and 312112106.

It is not an unprimeable number, because it can be changed into a prime (312112193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172690 + ... + 174487.

It is an arithmetic number, because the mean of its divisors is an integer number (41661360).

Almost surely, 2^312112123 is an apocalyptic number.

312112123 is a deficient number, since it is larger than the sum of its proper divisors (21178757).

312112123 is a wasteful number, since it uses less digits than its factorization.

312112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347237.

The product of its digits is 72, while the sum is 16.

The square root of 312112123 is about 17666.6953050082. The cubic root of 312112123 is about 678.3235251972.

Adding to 312112123 its reverse (321211213), we get a palindrome (633323336).

The spelling of 312112123 in words is "three hundred twelve million, one hundred twelve thousand, one hundred twenty-three".