1201201312103 has 16 divisors (see below), whose sum is σ = 1298845285920. Its totient is φ = 1104309230976.

The previous prime is 1201201312081. The next prime is 1201201312183. The reversal of 1201201312103 is 3012131021021.

It is a cyclic number.

It is not a de Polignac number, because 1201201312103 - 2⁶ = 1201201312039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201201312183) 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 15 ways as a sum of consecutive naturals, for example, 10669301 + ... + 10781297.

It is an arithmetic number, because the mean of its divisors is an integer number (81177830370).

Almost surely, 2^{1201201312103} is an apocalyptic number.

1201201312103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201201312103 is a deficient number, since it is larger than the sum of its proper divisors (97643973817).

1201201312103 is a wasteful number, since it uses less digits than its factorization.

1201201312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115346.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1201201312103 its reverse (3012131021021), we get a palindrome (4213332333124).

The spelling of 1201201312103 in words is "one trillion, two hundred one billion, two hundred one million, three hundred twelve thousand, one hundred three".