231430343 has 4 divisors (see below), whose sum is σ = 236812488. Its totient is φ = 226048200.

The previous prime is 231430337. The next prime is 231430351. The reversal of 231430343 is 343034132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231430343 - 2⁴ = 231430327 is a prime.

It is a super-2 number, since 2×231430343² = 107120007322195298, 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 (231430313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691008 + ... + 2691093.

It is an arithmetic number, because the mean of its divisors is an integer number (59203122).

Almost surely, 2^231430343 is an apocalyptic number.

231430343 is a deficient number, since it is larger than the sum of its proper divisors (5382145).

231430343 is an equidigital number, since it uses as much as digits as its factorization.

231430343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382144.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 231430343 is about 15212.8348114347. The cubic root of 231430343 is about 613.9600314570.

Adding to 231430343 its reverse (343034132), we get a palindrome (574464475).

The spelling of 231430343 in words is "two hundred thirty-one million, four hundred thirty thousand, three hundred forty-three".