231049231 has 8 divisors (see below), whose sum is σ = 272574464. Its totient is φ = 191653560.

The previous prime is 231049223. The next prime is 231049241. The reversal of 231049231 is 132940132.

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

It is not a de Polignac number, because 231049231 - 2³ = 231049223 is a prime.

It is a super-2 number, since 2×231049231² = 106767494291382722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231049196 and 231049205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231049241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532155 + ... + 532588.

It is an arithmetic number, because the mean of its divisors is an integer number (34071808).

Almost surely, 2^231049231 is an apocalyptic number.

231049231 is a deficient number, since it is larger than the sum of its proper divisors (41525233).

231049231 is a wasteful number, since it uses less digits than its factorization.

231049231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064781.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 231049231 is about 15200.3036482828. The cubic root of 231049231 is about 613.6228297874.

Adding to 231049231 its reverse (132940132), we get a palindrome (363989363).

The spelling of 231049231 in words is "two hundred thirty-one million, forty-nine thousand, two hundred thirty-one".