1200200001993 has 12 divisors (see below), whose sum is σ = 1733645981808. Its totient is φ = 800122370040.

The previous prime is 1200200001991. The next prime is 1200200002003. The reversal of 1200200001993 is 3991000020021.

It is not a de Polignac number, because 1200200001993 - 2¹ = 1200200001991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1200200001991) 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 in 11 ways as a sum of consecutive naturals, for example, 190323 + ... + 1560968.

It is an arithmetic number, because the mean of its divisors is an integer number (144470498484).

Almost surely, 2^{1200200001993} is an apocalyptic number.

It is an amenable number.

1200200001993 is a deficient number, since it is larger than the sum of its proper divisors (533445979815).

1200200001993 is a wasteful number, since it uses less digits than its factorization.

1200200001993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827444 (or 1827441 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The spelling of 1200200001993 in words is "one trillion, two hundred billion, two hundred million, one thousand, nine hundred ninety-three".