1103112303311 has 4 divisors (see below), whose sum is σ = 1121196111624. Its totient is φ = 1085028495000.

The previous prime is 1103112303299. The next prime is 1103112303317. The reversal of 1103112303311 is 1133032113011.

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 1103112303311 - 2³⁴ = 1085932434127 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 (1103112303317) 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, 9041904065 + ... + 9041904186.

It is an arithmetic number, because the mean of its divisors is an integer number (280299027906).

Almost surely, 2^{1103112303311} is an apocalyptic number.

1103112303311 is a deficient number, since it is larger than the sum of its proper divisors (18083808313).

1103112303311 is an equidigital number, since it uses as much as digits as its factorization.

1103112303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18083808312.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1103112303311 its reverse (1133032113011), we get a palindrome (2236144416322).

The spelling of 1103112303311 in words is "one trillion, one hundred three billion, one hundred twelve million, three hundred three thousand, three hundred eleven".