231020232321 has 8 divisors (see below), whose sum is σ = 321419453760. Its totient is φ = 147317249552.

The previous prime is 231020232173. The next prime is 231020232347. The reversal of 231020232321 is 123232020132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 231020232321 - 2¹⁸ = 231019970177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231020232721) 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, 1674059586 + ... + 1674059723.

It is an arithmetic number, because the mean of its divisors is an integer number (40177431720).

Almost surely, 2^231020232321 is an apocalyptic number.

It is an amenable number.

231020232321 is a deficient number, since it is larger than the sum of its proper divisors (90399221439).

231020232321 is a wasteful number, since it uses less digits than its factorization.

231020232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348119335.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 231020232321 its reverse (123232020132), we get a palindrome (354252252453).

The spelling of 231020232321 in words is "two hundred thirty-one billion, twenty million, two hundred thirty-two thousand, three hundred twenty-one".