231321210313 has 8 divisors (see below), whose sum is σ = 238581982080. Its totient is φ = 224157898800.

The previous prime is 231321210301. The next prime is 231321210343. The reversal of 231321210313 is 313012123132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231321210313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231321210343) 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, 24360243 + ... + 24369736.

It is an arithmetic number, because the mean of its divisors is an integer number (29822747760).

Almost surely, 2^231321210313 is an apocalyptic number.

It is an amenable number.

231321210313 is a deficient number, since it is larger than the sum of its proper divisors (7260771767).

231321210313 is a wasteful number, since it uses less digits than its factorization.

231321210313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48730127.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231321210313 its reverse (313012123132), we get a palindrome (544333333445).

The spelling of 231321210313 in words is "two hundred thirty-one billion, three hundred twenty-one million, two hundred ten thousand, three hundred thirteen".