212323133210989 has 2 divisors, whose sum is σ = 212323133210990. Its totient is φ = 212323133210988.

The previous prime is 212323133210977. The next prime is 212323133211037. The reversal of 212323133210989 is 989012331323212.

212323133210989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192896459906089 + 19426673304900 = 13888717^2 + 4407570^2 .

It is a cyclic number.

It is not a de Polignac number, because 212323133210989 - 2⁵ = 212323133210957 is a prime.

It is a super-2 number, since 2×212323133210989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212323133210939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106161566605494 + 106161566605495.

It is an arithmetic number, because the mean of its divisors is an integer number (106161566605495).

Almost surely, 2^{212323133210989} is an apocalyptic number.

It is an amenable number.

212323133210989 is a deficient number, since it is larger than the sum of its proper divisors (1).

212323133210989 is an equidigital number, since it uses as much as digits as its factorization.

212323133210989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 212323133210989 in words is "two hundred twelve trillion, three hundred twenty-three billion, one hundred thirty-three million, two hundred ten thousand, nine hundred eighty-nine".