11403031329 has 6 divisors (see below), whose sum is σ = 16471045266. Its totient is φ = 7602020880.

The previous prime is 11403031309. The next prime is 11403031349. The reversal of 11403031329 is 92313030411.

11403031329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11403031309) and next prime (11403031349).

It can be written as a sum of positive squares in only one way, i.e., 11129195025 + 273836304 = 105495^2 + 16548^2 .

It is not a de Polignac number, because 11403031329 - 2⁹ = 11403030817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11403031309) 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 5 ways as a sum of consecutive naturals, for example, 633501732 + ... + 633501749.

It is an arithmetic number, because the mean of its divisors is an integer number (2745174211).

Almost surely, 2^11403031329 is an apocalyptic number.

It is an amenable number.

11403031329 is a deficient number, since it is larger than the sum of its proper divisors (5068013937).

11403031329 is a wasteful number, since it uses less digits than its factorization.

11403031329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267003487 (or 1267003484 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 11403031329 in words is "eleven billion, four hundred three million, thirty-one thousand, three hundred twenty-nine".