123030133 has 2 divisors, whose sum is σ = 123030134. Its totient is φ = 123030132.

The previous prime is 123030079. The next prime is 123030137. The reversal of 123030133 is 331030321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112317604 + 10712529 = 10598^2 + 3273^2 .

It is an emirp because it is prime and its reverse (331030321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123030133 - 2¹⁷ = 122899061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123030137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515066 + 61515067.

It is an arithmetic number, because the mean of its divisors is an integer number (61515067).

Almost surely, 2^123030133 is an apocalyptic number.

It is an amenable number.

123030133 is a deficient number, since it is larger than the sum of its proper divisors (1).

123030133 is an equidigital number, since it uses as much as digits as its factorization.

123030133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 123030133 is about 11091.8949237720. The cubic root of 123030133 is about 497.3595916991.

Adding to 123030133 its reverse (331030321), we get a palindrome (454060454).

The spelling of 123030133 in words is "one hundred twenty-three million, thirty thousand, one hundred thirty-three".