1200043434399 has 16 divisors (see below), whose sum is σ = 1663728706560. Its totient is φ = 768570310080.

The previous prime is 1200043434371. The next prime is 1200043434449. The reversal of 1200043434399 is 9934343400021.

It is not a de Polignac number, because 1200043434399 - 2¹¹ = 1200043432351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200043434399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200043434329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47081029 + ... + 47106510.

It is an arithmetic number, because the mean of its divisors is an integer number (103983044160).

Almost surely, 2^{1200043434399} is an apocalyptic number.

1200043434399 is a deficient number, since it is larger than the sum of its proper divisors (463685272161).

1200043434399 is a wasteful number, since it uses less digits than its factorization.

1200043434399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94187710.

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 1200043434399 in words is "one trillion, two hundred billion, forty-three million, four hundred thirty-four thousand, three hundred ninety-nine".