133330123 has 2 divisors, whose sum is σ = 133330124. Its totient is φ = 133330122.

The previous prime is 133330069. The next prime is 133330159. The reversal of 133330123 is 321033331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133330123 - 2²⁵ = 99775691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133330123.

It is not a weakly prime, because it can be changed into another prime (133330423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66665061 + 66665062.

It is an arithmetic number, because the mean of its divisors is an integer number (66665062).

Almost surely, 2^133330123 is an apocalyptic number.

133330123 is a deficient number, since it is larger than the sum of its proper divisors (1).

133330123 is an equidigital number, since it uses as much as digits as its factorization.

133330123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 133330123 is about 11546.8663714447. The cubic root of 133330123 is about 510.8688547149.

Adding to 133330123 its reverse (321033331), we get a palindrome (454363454).

The spelling of 133330123 in words is "one hundred thirty-three million, three hundred thirty thousand, one hundred twenty-three".