323212119173521 has 2 divisors, whose sum is σ = 323212119173522. Its totient is φ = 323212119173520.

The previous prime is 323212119173413. The next prime is 323212119173533. The reversal of 323212119173521 is 125371911212323.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181151679747600 + 142060439425921 = 13459260^2 + 11918911^2 .

It is an emirp because it is prime and its reverse (125371911212323) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323212119173521 is a prime.

It is not a weakly prime, because it can be changed into another prime (323212119173621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606059586760 + 161606059586761.

It is an arithmetic number, because the mean of its divisors is an integer number (161606059586761).

Almost surely, 2^{323212119173521} is an apocalyptic number.

It is an amenable number.

323212119173521 is a deficient number, since it is larger than the sum of its proper divisors (1).

323212119173521 is an equidigital number, since it uses as much as digits as its factorization.

323212119173521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The spelling of 323212119173521 in words is "three hundred twenty-three trillion, two hundred twelve billion, one hundred nineteen million, one hundred seventy-three thousand, five hundred twenty-one".