12123303133 has 2 divisors, whose sum is σ = 12123303134. Its totient is φ = 12123303132.

The previous prime is 12123303113. The next prime is 12123303217. The reversal of 12123303133 is 33130332121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10409508729 + 1713794404 = 102027^2 + 41398^2 .

It is a cyclic number.

It is not a de Polignac number, because 12123303133 - 2¹³ = 12123294941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123303113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061651566 + 6061651567.

It is an arithmetic number, because the mean of its divisors is an integer number (6061651567).

Almost surely, 2^12123303133 is an apocalyptic number.

It is an amenable number.

12123303133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123303133 is an equidigital number, since it uses as much as digits as its factorization.

12123303133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12123303133 its reverse (33130332121), we get a palindrome (45253635254).

The spelling of 12123303133 in words is "twelve billion, one hundred twenty-three million, three hundred three thousand, one hundred thirty-three".