231342730 has 8 divisors (see below), whose sum is σ = 416416932. Its totient is φ = 92537088.

The previous prime is 231342719. The next prime is 231342743. The reversal of 231342730 is 37243132.

231342730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 228523689 + 2819041 = 15117^2 + 1679^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 231342695 and 231342704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11567127 + ... + 11567146.

Almost surely, 2^231342730 is an apocalyptic number.

231342730 is a deficient number, since it is larger than the sum of its proper divisors (185074202).

231342730 is a wasteful number, since it uses less digits than its factorization.

231342730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23134280.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 231342730 is about 15209.9549637729. The cubic root of 231342730 is about 613.8825456948.

Adding to 231342730 its reverse (37243132), we get a palindrome (268585862).

The spelling of 231342730 in words is "two hundred thirty-one million, three hundred forty-two thousand, seven hundred thirty".