129311203 has 8 divisors (see below), whose sum is σ = 152880480. Its totient is φ = 107016000.

The previous prime is 129311179. The next prime is 129311213. The reversal of 129311203 is 302113921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129311203 - 2⁹ = 129310691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129311213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318298 + ... + 318703.

It is an arithmetic number, because the mean of its divisors is an integer number (19110060).

Almost surely, 2^129311203 is an apocalyptic number.

129311203 is a deficient number, since it is larger than the sum of its proper divisors (23569277).

129311203 is an equidigital number, since it uses as much as digits as its factorization.

129311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637037.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 129311203 is about 11371.5083871930. The cubic root of 129311203 is about 505.6834232901.

The spelling of 129311203 in words is "one hundred twenty-nine million, three hundred eleven thousand, two hundred three".