1100405423 has 8 divisors (see below), whose sum is σ = 1185409008. Its totient is φ = 1015452864.

The previous prime is 1100405351. The next prime is 1100405459. The reversal of 1100405423 is 3245040011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100405423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100405395 and 1100405404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100405483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40211 + ... + 61787.

It is an arithmetic number, because the mean of its divisors is an integer number (148176126).

Almost surely, 2^1100405423 is an apocalyptic number.

1100405423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1100405423 is a deficient number, since it is larger than the sum of its proper divisors (85003585).

1100405423 is a wasteful number, since it uses less digits than its factorization.

1100405423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25513.

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

The square root of 1100405423 is about 33172.3593221827. The cubic root of 1100405423 is about 1032.4069211217.

Adding to 1100405423 its reverse (3245040011), we get a palindrome (4345445434).

The spelling of 1100405423 in words is "one billion, one hundred million, four hundred five thousand, four hundred twenty-three".