323212212202391 has 2 divisors, whose sum is σ = 323212212202392. Its totient is φ = 323212212202390.

The previous prime is 323212212202387. The next prime is 323212212202409. The reversal of 323212212202391 is 193202212212323.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (193202212212323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323212212202391 - 2² = 323212212202387 is a prime.

It is a super-2 number, since 2×323212212202391² (a number of 30 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323212212202091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606106101195 + 161606106101196.

It is an arithmetic number, because the mean of its divisors is an integer number (161606106101196).

Almost surely, 2^{323212212202391} is an apocalyptic number.

323212212202391 is a deficient number, since it is larger than the sum of its proper divisors (1).

323212212202391 is an equidigital number, since it uses as much as digits as its factorization.

323212212202391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 323212212202391 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred twelve million, two hundred two thousand, three hundred ninety-one".