211301000321 has 2 divisors, whose sum is σ = 211301000322. Its totient is φ = 211301000320.

The previous prime is 211301000249. The next prime is 211301000329. The reversal of 211301000321 is 123000103112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205063159921 + 6237840400 = 452839^2 + 78980^2 .

It is a cyclic number.

It is not a de Polignac number, because 211301000321 - 2²⁶ = 211233891457 is a prime.

It is a super-2 number, since 2×211301000321² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211301000296 and 211301000305.

It is not a weakly prime, because it can be changed into another prime (211301000329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105650500160 + 105650500161.

It is an arithmetic number, because the mean of its divisors is an integer number (105650500161).

Almost surely, 2^211301000321 is an apocalyptic number.

It is an amenable number.

211301000321 is a deficient number, since it is larger than the sum of its proper divisors (1).

211301000321 is an equidigital number, since it uses as much as digits as its factorization.

211301000321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211301000321 its reverse (123000103112), we get a palindrome (334301103433).

The spelling of 211301000321 in words is "two hundred eleven billion, three hundred one million, three hundred twenty-one", and thus it is an aban number.