1105040423 has 4 divisors (see below), whose sum is σ = 1105850160. Its totient is φ = 1104230688.

The previous prime is 1105040411. The next prime is 1105040449. The reversal of 1105040423 is 3240405011.

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

It is a cyclic number.

It is not a de Polignac number, because 1105040423 - 2¹⁰ = 1105039399 is a prime.

It is a super-2 number, since 2×1105040423² = 2442228672928037858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105040395 and 1105040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105040473) 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, 402818 + ... + 405551.

It is an arithmetic number, because the mean of its divisors is an integer number (276462540).

Almost surely, 2^1105040423 is an apocalyptic number.

1105040423 is a deficient number, since it is larger than the sum of its proper divisors (809737).

1105040423 is an equidigital number, since it uses as much as digits as its factorization.

1105040423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809736.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1105040423 is about 33242.1482909875. The cubic root of 1105040423 is about 1033.8544188936.

Adding to 1105040423 its reverse (3240405011), we get a palindrome (4345445434).

The spelling of 1105040423 in words is "one billion, one hundred five million, forty thousand, four hundred twenty-three".