231423230 has 16 divisors (see below), whose sum is σ = 438486480. Its totient is φ = 87697152.

The previous prime is 231423223. The next prime is 231423239. The reversal of 231423230 is 32324132.

It is a super-2 number, since 2×231423230² = 107113422767265800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231423239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608819 + ... + 609198.

It is an arithmetic number, because the mean of its divisors is an integer number (27405405).

Almost surely, 2^231423230 is an apocalyptic number.

231423230 is a deficient number, since it is larger than the sum of its proper divisors (207063250).

231423230 is a wasteful number, since it uses less digits than its factorization.

231423230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218043.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231423230 is about 15212.6010267804. The cubic root of 231423230 is about 613.9537413823.

Adding to 231423230 its reverse (32324132), we get a palindrome (263747362).

The spelling of 231423230 in words is "two hundred thirty-one million, four hundred twenty-three thousand, two hundred thirty".