321232130213 has 4 divisors (see below), whose sum is σ = 323388050700. Its totient is φ = 319076209728.

The previous prime is 321232130209. The next prime is 321232130239. The reversal of 321232130213 is 312031232123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34329419524 + 286902710689 = 185282^2 + 535633^2 .

It is not a de Polignac number, because 321232130213 - 2² = 321232130209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321232136213) 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 3 ways as a sum of consecutive naturals, for example, 1077960020 + ... + 1077960317.

It is an arithmetic number, because the mean of its divisors is an integer number (80847012675).

Almost surely, 2^321232130213 is an apocalyptic number.

It is an amenable number.

321232130213 is a deficient number, since it is larger than the sum of its proper divisors (2155920487).

321232130213 is a wasteful number, since it uses less digits than its factorization.

321232130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155920486.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 321232130213 its reverse (312031232123), we get a palindrome (633263362336).

The spelling of 321232130213 in words is "three hundred twenty-one billion, two hundred thirty-two million, one hundred thirty thousand, two hundred thirteen".