323212230220813 has 2 divisors, whose sum is σ = 323212230220814. Its totient is φ = 323212230220812.

The previous prime is 323212230220787. The next prime is 323212230220861. The reversal of 323212230220813 is 318022032212323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186442994374569 + 136769235846244 = 13654413^2 + 11694838^2 .

It is an emirp because it is prime and its reverse (318022032212323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323212230220813 - 2¹³ = 323212230212621 is a prime.

It is a super-2 number, since 2×323212230220813² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323212230520813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606115110406 + 161606115110407.

It is an arithmetic number, because the mean of its divisors is an integer number (161606115110407).

Almost surely, 2^{323212230220813} is an apocalyptic number.

It is an amenable number.

323212230220813 is a deficient number, since it is larger than the sum of its proper divisors (1).

323212230220813 is an equidigital number, since it uses as much as digits as its factorization.

323212230220813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 323212230220813 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred thirty million, two hundred twenty thousand, eight hundred thirteen".