129201303 has 16 divisors (see below), whose sum is σ = 214776576. Its totient is φ = 67117440.

The previous prime is 129201287. The next prime is 129201329. The reversal of 129201303 is 303102921.

It is a happy number.

It is not a de Polignac number, because 129201303 - 2⁴ = 129201287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 129201303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129201403) 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 in 15 ways as a sum of consecutive naturals, for example, 279426 + ... + 279887.

It is an arithmetic number, because the mean of its divisors is an integer number (13423536).

Almost surely, 2^129201303 is an apocalyptic number.

129201303 is a deficient number, since it is larger than the sum of its proper divisors (85575273).

129201303 is a wasteful number, since it uses less digits than its factorization.

129201303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559334.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 129201303 is about 11366.6751075237. The cubic root of 129201303 is about 505.5401246472.

The spelling of 129201303 in words is "one hundred twenty-nine million, two hundred one thousand, three hundred three".