312123000203 has 6 divisors (see below), whose sum is σ = 363081857436. Its totient is φ = 267534000132.

The previous prime is 312123000193. The next prime is 312123000209. The reversal of 312123000203 is 302000321213.

It is not a de Polignac number, because 312123000203 - 2³² = 307828032907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312123000209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3184928525 + ... + 3184928622.

It is an arithmetic number, because the mean of its divisors is an integer number (60513642906).

Almost surely, 2^312123000203 is an apocalyptic number.

312123000203 is a deficient number, since it is larger than the sum of its proper divisors (50958857233).

312123000203 is an equidigital number, since it uses as much as digits as its factorization.

312123000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369857161 (or 6369857154 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 312123000203 its reverse (302000321213), we get a palindrome (614123321416).

The spelling of 312123000203 in words is "three hundred twelve billion, one hundred twenty-three million, two hundred three", and thus it is an aban number.