1200044000403 has 16 divisors (see below), whose sum is σ = 1778612352000. Its totient is φ = 799683108840.

The previous prime is 1200044000399. The next prime is 1200044000413. The reversal of 1200044000403 is 3040004400021.

It is not a de Polignac number, because 1200044000403 - 2² = 1200044000399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200044000413) 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 in 15 ways as a sum of consecutive naturals, for example, 9553803 + ... + 9678596.

It is an arithmetic number, because the mean of its divisors is an integer number (111163272000).

Almost surely, 2^{1200044000403} is an apocalyptic number.

1200044000403 is a deficient number, since it is larger than the sum of its proper divisors (578568351597).

1200044000403 is a wasteful number, since it uses less digits than its factorization.

1200044000403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19234719 (or 19234713 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 1200044000403 its reverse (3040004400021), we get a palindrome (4240048400424).

The spelling of 1200044000403 in words is "one trillion, two hundred billion, forty-four million, four hundred three", and thus it is an aban number.