2012041343989 has 2 divisors, whose sum is σ = 2012041343990. Its totient is φ = 2012041343988.

The previous prime is 2012041343987. The next prime is 2012041344011. The reversal of 2012041343989 is 9893431402102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1673530322500 + 338511021489 = 1293650^2 + 581817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012041343989 - 2¹ = 2012041343987 is a prime.

It is a super-2 number, since 2×2012041343989² (a number of 25 digits) contains 22 as substring.

Together with 2012041343987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012041343981) 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, 1006020671994 + 1006020671995.

It is an arithmetic number, because the mean of its divisors is an integer number (1006020671995).

Almost surely, 2^{2012041343989} is an apocalyptic number.

It is an amenable number.

2012041343989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012041343989 is an equidigital number, since it uses as much as digits as its factorization.

2012041343989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 2012041343989 in words is "two trillion, twelve billion, forty-one million, three hundred forty-three thousand, nine hundred eighty-nine".