1200002000103 has 12 divisors (see below), whose sum is σ = 1770215717088. Its totient is φ = 782980028160.

The previous prime is 1200002000089. The next prime is 1200002000107. The reversal of 1200002000103 is 3010002000021.

It is a happy number.

It is not a de Polignac number, because 1200002000103 - 2¹⁶ = 1200001934567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200002000107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1418441658 + ... + 1418442503.

It is an arithmetic number, because the mean of its divisors is an integer number (147517976424).

Almost surely, 2^{1200002000103} is an apocalyptic number.

1200002000103 is a deficient number, since it is larger than the sum of its proper divisors (570213716985).

1200002000103 is a wasteful number, since it uses less digits than its factorization.

1200002000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836884214 (or 2836884211 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 1200002000103 its reverse (3010002000021), we get a palindrome (4210004000124).

The spelling of 1200002000103 in words is "one trillion, two hundred billion, two million, one hundred three", and thus it is an aban number.