1101312311103 has 12 divisors (see below), whose sum is σ = 1659948990960. Its totient is φ = 702286111296.

The previous prime is 1101312311101. The next prime is 1101312311137. The reversal of 1101312311103 is 3011132131011.

It is not a de Polignac number, because 1101312311103 - 2¹ = 1101312311101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101312311101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2660174458 + ... + 2660174871.

It is an arithmetic number, because the mean of its divisors is an integer number (138329082580).

Almost surely, 2^{1101312311103} is an apocalyptic number.

1101312311103 is a deficient number, since it is larger than the sum of its proper divisors (558636679857).

1101312311103 is a wasteful number, since it uses less digits than its factorization.

1101312311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320349358 (or 5320349355 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1101312311103 its reverse (3011132131011), we get a palindrome (4112444442114).

The spelling of 1101312311103 in words is "one trillion, one hundred one billion, three hundred twelve million, three hundred eleven thousand, one hundred three".