43013266781029 has 2 divisors, whose sum is σ = 43013266781030. Its totient is φ = 43013266781028.

The previous prime is 43013266781027. The next prime is 43013266781039. The reversal of 43013266781029 is 92018766231034.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23788347928900 + 19224918852129 = 4877330^2 + 4384623^2 .

It is a cyclic number.

It is not a de Polignac number, because 43013266781029 - 2¹ = 43013266781027 is a prime.

It is a super-2 number, since 2×43013266781029² (a number of 28 digits) contains 22 as substring.

Together with 43013266781027, 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 (43013266781027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506633390514 + 21506633390515.

It is an arithmetic number, because the mean of its divisors is an integer number (21506633390515).

Almost surely, 2^{43013266781029} is an apocalyptic number.

It is an amenable number.

43013266781029 is a deficient number, since it is larger than the sum of its proper divisors (1).

43013266781029 is an equidigital number, since it uses as much as digits as its factorization.

43013266781029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 43013266781029 in words is "forty-three trillion, thirteen billion, two hundred sixty-six million, seven hundred eighty-one thousand, twenty-nine".