323212213237261 has 2 divisors, whose sum is σ = 323212213237262. Its totient is φ = 323212213237260.

The previous prime is 323212213237247. The next prime is 323212213237283. The reversal of 323212213237261 is 162732312212323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235941304465161 + 87270908772100 = 15360381^2 + 9341890^2 .

It is a cyclic number.

It is not a de Polignac number, because 323212213237261 - 2¹⁵ = 323212213204493 is a prime.

It is a super-2 number, since 2×323212213237261² (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 (323212213231261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606106618630 + 161606106618631.

It is an arithmetic number, because the mean of its divisors is an integer number (161606106618631).

Almost surely, 2^{323212213237261} is an apocalyptic number.

It is an amenable number.

323212213237261 is a deficient number, since it is larger than the sum of its proper divisors (1).

323212213237261 is an equidigital number, since it uses as much as digits as its factorization.

323212213237261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

Adding to 323212213237261 its reverse (162732312212323), we get a palindrome (485944525449584).

The spelling of 323212213237261 in words is "three hundred twenty-three trillion, two hundred twelve billion, two hundred thirteen million, two hundred thirty-seven thousand, two hundred sixty-one".