321211000213 has 2 divisors, whose sum is σ = 321211000214. Its totient is φ = 321211000212.

The previous prime is 321211000169. The next prime is 321211000259. The reversal of 321211000213 is 312000112123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251304697809 + 69906302404 = 501303^2 + 264398^2 .

It is a cyclic number.

It is not a de Polignac number, because 321211000213 - 2³³ = 312621065621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321211000273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160605500106 + 160605500107.

It is an arithmetic number, because the mean of its divisors is an integer number (160605500107).

Almost surely, 2^321211000213 is an apocalyptic number.

It is an amenable number.

321211000213 is a deficient number, since it is larger than the sum of its proper divisors (1).

321211000213 is an equidigital number, since it uses as much as digits as its factorization.

321211000213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 321211000213 its reverse (312000112123), we get a palindrome (633211112336).

The spelling of 321211000213 in words is "three hundred twenty-one billion, two hundred eleven million, two hundred thirteen", and thus it is an aban number.