123030029 has 2 divisors, whose sum is σ = 123030030. Its totient is φ = 123030028.

The previous prime is 123029999. The next prime is 123030043. The reversal of 123030029 is 920030321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114532804 + 8497225 = 10702^2 + 2915^2 .

It is a cyclic number.

It is not a de Polignac number, because 123030029 - 2²⁴ = 106252813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123030049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515014 + 61515015.

It is an arithmetic number, because the mean of its divisors is an integer number (61515015).

Almost surely, 2^123030029 is an apocalyptic number.

It is an amenable number.

123030029 is a deficient number, since it is larger than the sum of its proper divisors (1).

123030029 is an equidigital number, since it uses as much as digits as its factorization.

123030029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 123030029 is about 11091.8902356632. The cubic root of 123030029 is about 497.3594515561.

The spelling of 123030029 in words is "one hundred twenty-three million, thirty thousand, twenty-nine".