12103312233 has 4 divisors (see below), whose sum is σ = 16137749648. Its totient is φ = 8068874820.

The previous prime is 12103312229. The next prime is 12103312259. The reversal of 12103312233 is 33221330121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12103312233 - 2² = 12103312229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103312223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017218703 + ... + 2017218708.

It is an arithmetic number, because the mean of its divisors is an integer number (4034437412).

Almost surely, 2^12103312233 is an apocalyptic number.

It is an amenable number.

12103312233 is a deficient number, since it is larger than the sum of its proper divisors (4034437415).

12103312233 is an equidigital number, since it uses as much as digits as its factorization.

12103312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034437414.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12103312233 its reverse (33221330121), we get a palindrome (45324642354).

The spelling of 12103312233 in words is "twelve billion, one hundred three million, three hundred twelve thousand, two hundred thirty-three".