231443230 has 16 divisors (see below), whose sum is σ = 416785824. Its totient is φ = 92535520.

The previous prime is 231443213. The next prime is 231443231. The reversal of 231443230 is 32344132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231443231) 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, 28284 + ... + 35536.

It is an arithmetic number, because the mean of its divisors is an integer number (26049114).

Almost surely, 2^231443230 is an apocalyptic number.

231443230 is a deficient number, since it is larger than the sum of its proper divisors (185342594).

231443230 is a wasteful number, since it uses less digits than its factorization.

231443230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10451.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 231443230 is about 15213.2583623627. The cubic root of 231443230 is about 613.9714271913.

Adding to 231443230 its reverse (32344132), we get a palindrome (263787362).

The spelling of 231443230 in words is "two hundred thirty-one million, four hundred forty-three thousand, two hundred thirty".