12103121133 has 24 divisors (see below), whose sum is σ = 17758916448. Its totient is φ = 7941285792.

The previous prime is 12103121131. The next prime is 12103121137. The reversal of 12103121133 is 33112130121.

It is not a de Polignac number, because 12103121133 - 2¹ = 12103121131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103121131) 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, 723166 + ... + 739712.

It is an arithmetic number, because the mean of its divisors is an integer number (739954852).

Almost surely, 2^12103121133 is an apocalyptic number.

It is an amenable number.

12103121133 is a deficient number, since it is larger than the sum of its proper divisors (5655795315).

12103121133 is a wasteful number, since it uses less digits than its factorization.

12103121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17833 (or 17830 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12103121133 its reverse (33112130121), we get a palindrome (45215251254).

The spelling of 12103121133 in words is "twelve billion, one hundred three million, one hundred twenty-one thousand, one hundred thirty-three".