312123002103 has 48 divisors (see below), whose sum is σ = 510817888000. Its totient is φ = 188214483600.

The previous prime is 312123002077. The next prime is 312123002137. The reversal of 312123002103 is 301200321213.

It is not a de Polignac number, because 312123002103 - 2⁵ = 312123002071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312123002143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410088 + ... + 890178.

Almost surely, 2^312123002103 is an apocalyptic number.

312123002103 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

312123002103 is a deficient number, since it is larger than the sum of its proper divisors (198694885897).

312123002103 is a wasteful number, since it uses less digits than its factorization.

312123002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480321 (or 480304 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 312123002103 its reverse (301200321213), we get a palindrome (613323323316).

The spelling of 312123002103 in words is "three hundred twelve billion, one hundred twenty-three million, two thousand, one hundred three".