1201111102103 has 16 divisors (see below), whose sum is σ = 1345814870400. Its totient is φ = 1062330285600.

The previous prime is 1201111102099. The next prime is 1201111102111. The reversal of 1201111102103 is 3012011111021.

It is a cyclic number.

It is not a de Polignac number, because 1201111102103 - 2² = 1201111102099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111102133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5882108 + ... + 6082878.

It is an arithmetic number, because the mean of its divisors is an integer number (84113429400).

Almost surely, 2^{1201111102103} is an apocalyptic number.

1201111102103 is a deficient number, since it is larger than the sum of its proper divisors (144703768297).

1201111102103 is a wasteful number, since it uses less digits than its factorization.

1201111102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215518.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1201111102103 its reverse (3012011111021), we get a palindrome (4213122213124).

The spelling of 1201111102103 in words is "one trillion, two hundred one billion, one hundred eleven million, one hundred two thousand, one hundred three".