1129173203 has 8 divisors (see below), whose sum is σ = 1169063280. Its totient is φ = 1089346720.

The previous prime is 1129173193. The next prime is 1129173229. The reversal of 1129173203 is 3023719211.

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

It is not a de Polignac number, because 1129173203 - 2⁴ = 1129173187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129178203) 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, 21788 + ... + 52278.

It is an arithmetic number, because the mean of its divisors is an integer number (146132910).

Almost surely, 2^1129173203 is an apocalyptic number.

1129173203 is a deficient number, since it is larger than the sum of its proper divisors (39890077).

1129173203 is a wasteful number, since it uses less digits than its factorization.

1129173203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31797.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1129173203 is about 33603.1725139160. The cubic root of 1129173203 is about 1041.3263412296.

The spelling of 1129173203 in words is "one billion, one hundred twenty-nine million, one hundred seventy-three thousand, two hundred three".