213232301321231 has 4 divisors (see below), whose sum is σ = 213233970181464. Its totient is φ = 213230632461000.

The previous prime is 213232301321213. The next prime is 213232301321279. The reversal of 213232301321231 is 132123103232312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213232301321231 is a prime.

It is a super-2 number, since 2×213232301321231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213232301321194 and 213232301321203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213232301311231) by changing a digit.

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, 834238445 + ... + 834494006.

It is an arithmetic number, because the mean of its divisors is an integer number (53308492545366).

Almost surely, 2^{213232301321231} is an apocalyptic number.

213232301321231 is a deficient number, since it is larger than the sum of its proper divisors (1668860233).

213232301321231 is a wasteful number, since it uses less digits than its factorization.

213232301321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668860232.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 213232301321231 its reverse (132123103232312), we get a palindrome (345355404553543).

The spelling of 213232301321231 in words is "two hundred thirteen trillion, two hundred thirty-two billion, three hundred one million, three hundred twenty-one thousand, two hundred thirty-one".