210232031321 has 16 divisors (see below), whose sum is σ = 231400796928. Its totient is φ = 189783561600.

The previous prime is 210232031293. The next prime is 210232031357. The reversal of 210232031321 is 123130232012.

210232031321 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 210232031321 - 2⁶ = 210232031257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210232031293 and 210232031302.

It is not an unprimeable number, because it can be changed into a prime (210232031381) 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, 655541 + ... + 922061.

It is an arithmetic number, because the mean of its divisors is an integer number (14462549808).

Almost surely, 2^210232031321 is an apocalyptic number.

It is an amenable number.

210232031321 is a deficient number, since it is larger than the sum of its proper divisors (21168765607).

210232031321 is a wasteful number, since it uses less digits than its factorization.

210232031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267872.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 210232031321 its reverse (123130232012), we get a palindrome (333362263333).

The spelling of 210232031321 in words is "two hundred ten billion, two hundred thirty-two million, thirty-one thousand, three hundred twenty-one".