203130029 has 2 divisors, whose sum is σ = 203130030. Its totient is φ = 203130028.

The previous prime is 203129999. The next prime is 203130047. The reversal of 203130029 is 920031302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202407529 + 722500 = 14227^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 203130029 - 2¹² = 203125933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203135029) 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, 101565014 + 101565015.

It is an arithmetic number, because the mean of its divisors is an integer number (101565015).

Almost surely, 2^203130029 is an apocalyptic number.

It is an amenable number.

203130029 is a deficient number, since it is larger than the sum of its proper divisors (1).

203130029 is an equidigital number, since it uses as much as digits as its factorization.

203130029 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 203130029 is about 14252.3692416384. The cubic root of 203130029 is about 587.8385231156.

The spelling of 203130029 in words is "two hundred three million, one hundred thirty thousand, twenty-nine".