212013231289 has 2 divisors, whose sum is σ = 212013231290. Its totient is φ = 212013231288.

The previous prime is 212013231257. The next prime is 212013231293. The reversal of 212013231289 is 982132310212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182563925625 + 29449305664 = 427275^2 + 171608^2 .

It is a cyclic number.

It is not a de Polignac number, because 212013231289 - 2⁵ = 212013231257 is a prime.

It is a super-2 number, since 2×212013231289² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212013231229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006615644 + 106006615645.

It is an arithmetic number, because the mean of its divisors is an integer number (106006615645).

Almost surely, 2^212013231289 is an apocalyptic number.

It is an amenable number.

212013231289 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013231289 is an equidigital number, since it uses as much as digits as its factorization.

212013231289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 212013231289 in words is "two hundred twelve billion, thirteen million, two hundred thirty-one thousand, two hundred eighty-nine".