1201311102103 has 32 divisors (see below), whose sum is σ = 1414422269568. Its totient is φ = 998866176000.

The previous prime is 1201311102097. The next prime is 1201311102107. The reversal of 1201311102103 is 3012011131021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1201311102103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201311102107) 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 31 ways as a sum of consecutive naturals, for example, 107475051 + ... + 107486227.

It is an arithmetic number, because the mean of its divisors is an integer number (44200695924).

Almost surely, 2^{1201311102103} is an apocalyptic number.

1201311102103 is a deficient number, since it is larger than the sum of its proper divisors (213111167465).

1201311102103 is a wasteful number, since it uses less digits than its factorization.

1201311102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13323.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1201311102103 its reverse (3012011131021), we get a palindrome (4213322233124).

The spelling of 1201311102103 in words is "one trillion, two hundred one billion, three hundred eleven million, one hundred two thousand, one hundred three".