1123400011103 has 4 divisors (see below), whose sum is σ = 1124533614528. Its totient is φ = 1122266407680.

The previous prime is 1123400011067. The next prime is 1123400011109. The reversal of 1123400011103 is 3011100043211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123400011103 - 2⁶ = 1123400011039 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 (1123400011109) 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, 566800226 + ... + 566802207.

It is an arithmetic number, because the mean of its divisors is an integer number (281133403632).

Almost surely, 2^{1123400011103} is an apocalyptic number.

1123400011103 is a deficient number, since it is larger than the sum of its proper divisors (1133603425).

1123400011103 is an equidigital number, since it uses as much as digits as its factorization.

1123400011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133603424.

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

Adding to 1123400011103 its reverse (3011100043211), we get a palindrome (4134500054314).

The spelling of 1123400011103 in words is "one trillion, one hundred twenty-three billion, four hundred million, eleven thousand, one hundred three".