1101211103 has 4 divisors (see below), whose sum is σ = 1110956448. Its totient is φ = 1091465760.

The previous prime is 1101211079. The next prime is 1101211117. The reversal of 1101211103 is 3011121011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3011121011 = 29 ⋅103831759.

It is a cyclic number.

It is not a de Polignac number, because 1101211103 - 2¹⁰ = 1101210079 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 (1101211183) 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, 4872503 + ... + 4872728.

It is an arithmetic number, because the mean of its divisors is an integer number (277739112).

Almost surely, 2^1101211103 is an apocalyptic number.

1101211103 is a deficient number, since it is larger than the sum of its proper divisors (9745345).

1101211103 is an equidigital number, since it uses as much as digits as its factorization.

1101211103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9745344.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1101211103 is about 33184.5009454715. The cubic root of 1101211103 is about 1032.6588242447.

Adding to 1101211103 its reverse (3011121011), we get a palindrome (4112332114).

The spelling of 1101211103 in words is "one billion, one hundred one million, two hundred eleven thousand, one hundred three".