1101311103 has 4 divisors (see below), whose sum is σ = 1468414808. Its totient is φ = 734207400.

The previous prime is 1101311087. The next prime is 1101311129. The reversal of 1101311103 is 3011131011.

1101311103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1101311103 - 2⁴ = 1101311087 is a prime.

It is a super-2 number, since 2×1101311103² = 2425772291182153218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101311143) 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, 183551848 + ... + 183551853.

It is an arithmetic number, because the mean of its divisors is an integer number (367103702).

Almost surely, 2^1101311103 is an apocalyptic number.

1101311103 is a deficient number, since it is larger than the sum of its proper divisors (367103705).

1101311103 is an equidigital number, since it uses as much as digits as its factorization.

1101311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367103704.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1101311103 is about 33186.0076387625. The cubic root of 1101311103 is about 1032.6900815748.

Adding to 1101311103 its reverse (3011131011), we get a palindrome (4112442114).

The spelling of 1101311103 in words is "one billion, one hundred one million, three hundred eleven thousand, one hundred three".