231040329 has 8 divisors (see below), whose sum is σ = 331750272. Its totient is φ = 142178640.

The previous prime is 231040309. The next prime is 231040331. The reversal of 231040329 is 923040132.

231040329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231040329 - 2¹⁷ = 230909257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231040299 and 231040308.

It is not an unprimeable number, because it can be changed into a prime (231040309) 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, 2962017 + ... + 2962094.

It is an arithmetic number, because the mean of its divisors is an integer number (41468784).

Almost surely, 2^231040329 is an apocalyptic number.

It is an amenable number.

231040329 is a deficient number, since it is larger than the sum of its proper divisors (100709943).

231040329 is a wasteful number, since it uses less digits than its factorization.

231040329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924127.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 231040329 is about 15200.0108223646. The cubic root of 231040329 is about 613.6149490130.

The spelling of 231040329 in words is "two hundred thirty-one million, forty thousand, three hundred twenty-nine".