213001300321 has 2 divisors, whose sum is σ = 213001300322. Its totient is φ = 213001300320.

The previous prime is 213001300283. The next prime is 213001300357. The reversal of 213001300321 is 123003100312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155362893921 + 57638406400 = 394161^2 + 240080^2 .

It is a cyclic number.

It is not a de Polignac number, because 213001300321 - 2⁹ = 213001299809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213001300295 and 213001300304.

It is not a weakly prime, because it can be changed into another prime (213001300361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106500650160 + 106500650161.

It is an arithmetic number, because the mean of its divisors is an integer number (106500650161).

Almost surely, 2^213001300321 is an apocalyptic number.

It is an amenable number.

213001300321 is a deficient number, since it is larger than the sum of its proper divisors (1).

213001300321 is an equidigital number, since it uses as much as digits as its factorization.

213001300321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 213001300321 its reverse (123003100312), we get a palindrome (336004400633).

Subtracting from 213001300321 its reverse (123003100312), we obtain a square (89998200009 = 299997²).

The spelling of 213001300321 in words is "two hundred thirteen billion, one million, three hundred thousand, three hundred twenty-one".