1100230405 has 4 divisors (see below), whose sum is σ = 1320276492. Its totient is φ = 880184320.

The previous prime is 1100230399. The next prime is 1100230433. The reversal of 1100230405 is 5040320011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 827022564 + 273207841 = 28758^2 + 16529^2 .

It is not a de Polignac number, because 1100230405 - 2¹⁹ = 1099706117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110023036 + ... + 110023045.

It is an arithmetic number, because the mean of its divisors is an integer number (330069123).

Almost surely, 2^1100230405 is an apocalyptic number.

It is an amenable number.

1100230405 is a deficient number, since it is larger than the sum of its proper divisors (220046087).

1100230405 is an equidigital number, since it uses as much as digits as its factorization.

1100230405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220046086.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1100230405 is about 33169.7212077521. The cubic root of 1100230405 is about 1032.3521839097.

Adding to 1100230405 its reverse (5040320011), we get a palindrome (6140550416).

The spelling of 1100230405 in words is "one billion, one hundred million, two hundred thirty thousand, four hundred five".