12123241033 has 4 divisors (see below), whose sum is σ = 12159215380. Its totient is φ = 12087266688.

The previous prime is 12123241019. The next prime is 12123241043. The reversal of 12123241033 is 33014232121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9034882704 + 3088358329 = 95052^2 + 55573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123241033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12123240995 and 12123241013.

It is not an unprimeable number, because it can be changed into a prime (12123241003) 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, 17986668 + ... + 17987341.

It is an arithmetic number, because the mean of its divisors is an integer number (3039803845).

Almost surely, 2^12123241033 is an apocalyptic number.

It is an amenable number.

12123241033 is a deficient number, since it is larger than the sum of its proper divisors (35974347).

12123241033 is an equidigital number, since it uses as much as digits as its factorization.

12123241033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35974346.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12123241033 its reverse (33014232121), we get a palindrome (45137473154).

The spelling of 12123241033 in words is "twelve billion, one hundred twenty-three million, two hundred forty-one thousand, thirty-three".