231201130321 has 16 divisors (see below), whose sum is σ = 267578809344. Its totient is φ = 195663643344.

The previous prime is 231201130309. The next prime is 231201130397. The reversal of 231201130321 is 123031102132.

231201130321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 231201130321 - 2³¹ = 229053646673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231201130021) 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 15 ways as a sum of consecutive naturals, for example, 822996 + ... + 1067578.

It is an arithmetic number, because the mean of its divisors is an integer number (16723675584).

Almost surely, 2^231201130321 is an apocalyptic number.

It is an amenable number.

231201130321 is a deficient number, since it is larger than the sum of its proper divisors (36377679023).

231201130321 is a wasteful number, since it uses less digits than its factorization.

231201130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246300.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231201130321 its reverse (123031102132), we get a palindrome (354232232453).

The spelling of 231201130321 in words is "two hundred thirty-one billion, two hundred one million, one hundred thirty thousand, three hundred twenty-one".