1101100409 has 4 divisors (see below), whose sum is σ = 1101480804. Its totient is φ = 1100720016.

The previous prime is 1101100379. The next prime is 1101100411. The reversal of 1101100409 is 9040011011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9040011011 = 23 ⋅393043957.

It can be written as a sum of positive squares in 2 ways, for example, as 919605625 + 181494784 = 30325^2 + 13472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101100409 - 2²⁴ = 1084323193 is a prime.

It is a super-2 number, since 2×1101100409² = 2424844221399934562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101100009) 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, 185822 + ... + 191655.

It is an arithmetic number, because the mean of its divisors is an integer number (275370201).

Almost surely, 2^1101100409 is an apocalyptic number.

It is an amenable number.

1101100409 is a deficient number, since it is larger than the sum of its proper divisors (380395).

1101100409 is an equidigital number, since it uses as much as digits as its factorization.

1101100409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380394.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1101100409 is about 33182.8330466222. The cubic root of 1101100409 is about 1032.6242220490.

The spelling of 1101100409 in words is "one billion, one hundred one million, one hundred thousand, four hundred nine".