11321323103 has 4 divisors (see below), whose sum is σ = 11321537880. Its totient is φ = 11321108328.

The previous prime is 11321323063. The next prime is 11321323127. The reversal of 11321323103 is 30132312311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30132312311 = 60727 ⋅496193.

It is a cyclic number.

It is not a de Polignac number, because 11321323103 - 2¹² = 11321319007 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 (11321323703) 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, 31913 + ... + 153821.

It is an arithmetic number, because the mean of its divisors is an integer number (2830384470).

Almost surely, 2^11321323103 is an apocalyptic number.

11321323103 is a deficient number, since it is larger than the sum of its proper divisors (214777).

11321323103 is an equidigital number, since it uses as much as digits as its factorization.

11321323103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214776.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11321323103 its reverse (30132312311), we get a palindrome (41453635414).

The spelling of 11321323103 in words is "eleven billion, three hundred twenty-one million, three hundred twenty-three thousand, one hundred three".