212323323169 has 2 divisors, whose sum is σ = 212323323170. Its totient is φ = 212323323168.

The previous prime is 212323323151. The next prime is 212323323259. The reversal of 212323323169 is 961323323212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212322816225 + 506944 = 460785^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 212323323169 - 2⁵ = 212323323137 is a prime.

It is a super-2 number, since 2×212323323169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212323383169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106161661584 + 106161661585.

It is an arithmetic number, because the mean of its divisors is an integer number (106161661585).

Almost surely, 2^212323323169 is an apocalyptic number.

It is an amenable number.

212323323169 is a deficient number, since it is larger than the sum of its proper divisors (1).

212323323169 is an equidigital number, since it uses as much as digits as its factorization.

212323323169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 37.

The spelling of 212323323169 in words is "two hundred twelve billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred sixty-nine".