1200002112103 has 4 divisors (see below), whose sum is σ = 1201562583760. Its totient is φ = 1198441640448.

The previous prime is 1200002112073. The next prime is 1200002112139. The reversal of 1200002112103 is 3012112000021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200002112103 - 2⁹ = 1200002111591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200002112703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780234675 + ... + 780236212.

It is an arithmetic number, because the mean of its divisors is an integer number (300390645940).

Almost surely, 2^{1200002112103} is an apocalyptic number.

1200002112103 is a deficient number, since it is larger than the sum of its proper divisors (1560471657).

1200002112103 is an equidigital number, since it uses as much as digits as its factorization.

1200002112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560471656.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1200002112103 its reverse (3012112000021), we get a palindrome (4212114112124).

The spelling of 1200002112103 in words is "one trillion, two hundred billion, two million, one hundred twelve thousand, one hundred three".