231302231 has 8 divisors (see below), whose sum is σ = 240498720. Its totient is φ = 222187168.

The previous prime is 231302213. The next prime is 231302293. The reversal of 231302231 is 132203132.

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

It is a cyclic number.

It is not a de Polignac number, because 231302231 - 2¹⁸ = 231040087 is a prime.

It is a super-2 number, since 2×231302231² = 107001444131154722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302131) 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, 14531 + ... + 25956.

It is an arithmetic number, because the mean of its divisors is an integer number (30062340).

Almost surely, 2^231302231 is an apocalyptic number.

231302231 is a deficient number, since it is larger than the sum of its proper divisors (9196489).

231302231 is a wasteful number, since it uses less digits than its factorization.

231302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40713.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231302231 is about 15208.6235734862. The cubic root of 231302231 is about 613.8467213861.

Adding to 231302231 its reverse (132203132), we get a palindrome (363505363).

Subtracting from 231302231 its reverse (132203132), we obtain a palindrome (99099099).

The spelling of 231302231 in words is "two hundred thirty-one million, three hundred two thousand, two hundred thirty-one".