12312122103 has 24 divisors (see below), whose sum is σ = 18217639440. Its totient is φ = 8008439040.

The previous prime is 12312122093. The next prime is 12312122131. The reversal of 12312122103 is 30122121321.

It is not a de Polignac number, because 12312122103 - 2¹⁴ = 12312105719 is a prime.

It is a super-2 number, since 2×12312122103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312122153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347263 + ... + 381071.

It is an arithmetic number, because the mean of its divisors is an integer number (759068310).

Almost surely, 2^12312122103 is an apocalyptic number.

12312122103 is a deficient number, since it is larger than the sum of its proper divisors (5905517337).

12312122103 is a wasteful number, since it uses less digits than its factorization.

12312122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34799 (or 34796 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12312122103 its reverse (30122121321), we get a palindrome (42434243424).

The spelling of 12312122103 in words is "twelve billion, three hundred twelve million, one hundred twenty-two thousand, one hundred three".