211230133321 has 2 divisors, whose sum is σ = 211230133322. Its totient is φ = 211230133320.

The previous prime is 211230133273. The next prime is 211230133327. The reversal of 211230133321 is 123331032112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129740438025 + 81489695296 = 360195^2 + 285464^2 .

It is a cyclic number.

It is not a de Polignac number, because 211230133321 - 2¹³ = 211230125129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211230133292 and 211230133301.

It is not a weakly prime, because it can be changed into another prime (211230133327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615066660 + 105615066661.

It is an arithmetic number, because the mean of its divisors is an integer number (105615066661).

Almost surely, 2^211230133321 is an apocalyptic number.

It is an amenable number.

211230133321 is a deficient number, since it is larger than the sum of its proper divisors (1).

211230133321 is an equidigital number, since it uses as much as digits as its factorization.

211230133321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 211230133321 its reverse (123331032112), we get a palindrome (334561165433).

The spelling of 211230133321 in words is "two hundred eleven billion, two hundred thirty million, one hundred thirty-three thousand, three hundred twenty-one".