11320311103 has 4 divisors (see below), whose sum is σ = 11322439128. Its totient is φ = 11318183080.

The previous prime is 11320311077. The next prime is 11320311127. The reversal of 11320311103 is 30111302311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30111302311 = 23 ⋅1309187057.

It is a cyclic number.

It is not a de Polignac number, because 11320311103 - 2²⁹ = 10783440191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320311133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056013 + ... + 1066678.

It is an arithmetic number, because the mean of its divisors is an integer number (2830609782).

Almost surely, 2^11320311103 is an apocalyptic number.

11320311103 is a deficient number, since it is larger than the sum of its proper divisors (2128025).

11320311103 is an equidigital number, since it uses as much as digits as its factorization.

11320311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128024.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11320311103 its reverse (30111302311), we get a palindrome (41431613414).

The spelling of 11320311103 in words is "eleven billion, three hundred twenty million, three hundred eleven thousand, one hundred three".