1000120112103 has 48 divisors (see below), whose sum is σ = 1624041309696. Its totient is φ = 536161498560.

The previous prime is 1000120112099. The next prime is 1000120112111. The reversal of 1000120112103 is 3012110210001.

It is not a de Polignac number, because 1000120112103 - 2² = 1000120112099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000120112153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140433 + ... + 1421253.

It is an arithmetic number, because the mean of its divisors is an integer number (33834193952).

Almost surely, 2^{1000120112103} is an apocalyptic number.

1000120112103 is a deficient number, since it is larger than the sum of its proper divisors (623921197593).

1000120112103 is a wasteful number, since it uses less digits than its factorization.

1000120112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280972 (or 1280953 counting only the distinct ones).

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

Adding to 1000120112103 its reverse (3012110210001), we get a palindrome (4012230322104).

The spelling of 1000120112103 in words is "one trillion, one hundred twenty million, one hundred twelve thousand, one hundred three".