231321020306 has 8 divisors (see below), whose sum is σ = 347009670000. Its totient is φ = 115651130308.

The previous prime is 231321020267. The next prime is 231321020383. The reversal of 231321020306 is 603020123132.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4659056 + ... + 4708443.

It is an arithmetic number, because the mean of its divisors is an integer number (43376208750).

Almost surely, 2^231321020306 is an apocalyptic number.

231321020306 is a deficient number, since it is larger than the sum of its proper divisors (115688649694).

231321020306 is a wasteful number, since it uses less digits than its factorization.

231321020306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9379848.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231321020306 its reverse (603020123132), we get a palindrome (834341143438).

The spelling of 231321020306 in words is "two hundred thirty-one billion, three hundred twenty-one million, twenty thousand, three hundred six".