1103205101 has 4 divisors (see below), whose sum is σ = 1112968092. Its totient is φ = 1093442112.

The previous prime is 1103205083. The next prime is 1103205109. The reversal of 1103205101 is 1015023011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1015023011 = 277 ⋅3664343.

It can be written as a sum of positive squares in 2 ways, for example, as 387696100 + 715509001 = 19690^2 + 26749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103205101 - 2¹⁰ = 1103204077 is a prime.

It is a super-2 number, since 2×1103205101² = 2434122989744840402, 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 (1103205109) 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, 4881326 + ... + 4881551.

It is an arithmetic number, because the mean of its divisors is an integer number (278242023).

Almost surely, 2^1103205101 is an apocalyptic number.

It is an amenable number.

1103205101 is a deficient number, since it is larger than the sum of its proper divisors (9762991).

1103205101 is an equidigital number, since it uses as much as digits as its factorization.

1103205101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9762990.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1103205101 is about 33214.5314734379. The cubic root of 1103205101 is about 1033.2817378216.

Adding to 1103205101 its reverse (1015023011), we get a palindrome (2118228112).

The spelling of 1103205101 in words is "one billion, one hundred three million, two hundred five thousand, one hundred one".