312231112123 has 8 divisors (see below), whose sum is σ = 357375404000. Its totient is φ = 267221782080.

The previous prime is 312231112121. The next prime is 312231112133. The reversal of 312231112123 is 321211132213.

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

It is a cyclic number.

It is not a de Polignac number, because 312231112123 - 2¹ = 312231112121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312231112094 and 312231112103.

It is not an unprimeable number, because it can be changed into a prime (312231112121) 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, 33735498 + ... + 33744751.

It is an arithmetic number, because the mean of its divisors is an integer number (44671925500).

Almost surely, 2^312231112123 is an apocalyptic number.

312231112123 is a deficient number, since it is larger than the sum of its proper divisors (45144291877).

312231112123 is an equidigital number, since it uses as much as digits as its factorization.

312231112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67480917.

The product of its digits is 432, while the sum is 22.

Adding to 312231112123 its reverse (321211132213), we get a palindrome (633442244336).

The spelling of 312231112123 in words is "three hundred twelve billion, two hundred thirty-one million, one hundred twelve thousand, one hundred twenty-three".