1200043434371 has 2 divisors, whose sum is σ = 1200043434372. Its totient is φ = 1200043434370.

The previous prime is 1200043434353. The next prime is 1200043434449. The reversal of 1200043434371 is 1734343400021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1200043434371 - 2¹⁸ = 1200043172227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1200043434311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600021717185 + 600021717186.

It is an arithmetic number, because the mean of its divisors is an integer number (600021717186).

Almost surely, 2^{1200043434371} is an apocalyptic number.

1200043434371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200043434371 is an equidigital number, since it uses as much as digits as its factorization.

1200043434371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 32.

Adding to 1200043434371 its reverse (1734343400021), we get a palindrome (2934386834392).

The spelling of 1200043434371 in words is "one trillion, two hundred billion, forty-three million, four hundred thirty-four thousand, three hundred seventy-one".