231042867 has 32 divisors (see below), whose sum is σ = 345461760. Its totient is φ = 136165920.

The previous prime is 231042859. The next prime is 231042871. The reversal of 231042867 is 768240132.

It is not a de Polignac number, because 231042867 - 2³ = 231042859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (231042817) 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 31 ways as a sum of consecutive naturals, for example, 182884 + ... + 184142.

It is an arithmetic number, because the mean of its divisors is an integer number (10795680).

Almost surely, 2^231042867 is an apocalyptic number.

231042867 is a deficient number, since it is larger than the sum of its proper divisors (114418893).

231042867 is a wasteful number, since it uses less digits than its factorization.

231042867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 231042867 is about 15200.0943089180. The cubic root of 231042867 is about 613.6171958776.

Adding to 231042867 its reverse (768240132), we get a palindrome (999282999).

The spelling of 231042867 in words is "two hundred thirty-one million, forty-two thousand, eight hundred sixty-seven".