212323133178269 has 2 divisors, whose sum is σ = 212323133178270. Its totient is φ = 212323133178268.

The previous prime is 212323133178257. The next prime is 212323133178281. The reversal of 212323133178269 is 962871331323212.

It is a balanced prime because it is at equal distance from previous prime (212323133178257) and next prime (212323133178281).

It can be written as a sum of positive squares in only one way, i.e., 121108924502500 + 91214208675769 = 11004950^2 + 9550613^2 .

It is a cyclic number.

It is not a de Polignac number, because 212323133178269 - 2¹⁶ = 212323133112733 is a prime.

It is a super-2 number, since 2×212323133178269² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212323133178269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212323133171269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106161566589134 + 106161566589135.

It is an arithmetic number, because the mean of its divisors is an integer number (106161566589135).

Almost surely, 2^{212323133178269} is an apocalyptic number.

It is an amenable number.

212323133178269 is a deficient number, since it is larger than the sum of its proper divisors (1).

212323133178269 is an equidigital number, since it uses as much as digits as its factorization.

212323133178269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 53.

The spelling of 212323133178269 in words is "two hundred twelve trillion, three hundred twenty-three billion, one hundred thirty-three million, one hundred seventy-eight thousand, two hundred sixty-nine".