124021002029 has 2 divisors, whose sum is σ = 124021002030. Its totient is φ = 124021002028.

The previous prime is 124021001957. The next prime is 124021002089. The reversal of 124021002029 is 920200120421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69736661929 + 54284340100 = 264077^2 + 232990^2 .

It is an emirp because it is prime and its reverse (920200120421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124021002029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 124021001995 and 124021002013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124021002089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62010501014 + 62010501015.

It is an arithmetic number, because the mean of its divisors is an integer number (62010501015).

Almost surely, 2^124021002029 is an apocalyptic number.

It is an amenable number.

124021002029 is a deficient number, since it is larger than the sum of its proper divisors (1).

124021002029 is an equidigital number, since it uses as much as digits as its factorization.

124021002029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 124021002029 in words is "one hundred twenty-four billion, twenty-one million, two thousand, twenty-nine".