1123030405 has 8 divisors (see below), whose sum is σ = 1540156032. Its totient is φ = 770077968.

The previous prime is 1123030399. The next prime is 1123030417. The reversal of 1123030405 is 5040303211.

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

It is a cyclic number.

It is not a de Polignac number, because 1123030405 - 2⁷ = 1123030277 is a prime.

It is a super-2 number, since 2×1123030405² = 2522394581108928050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 16043257 + ... + 16043326.

It is an arithmetic number, because the mean of its divisors is an integer number (192519504).

Almost surely, 2^1123030405 is an apocalyptic number.

It is an amenable number.

1123030405 is a deficient number, since it is larger than the sum of its proper divisors (417125627).

1123030405 is an equidigital number, since it uses as much as digits as its factorization.

1123030405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32086595.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1123030405 is about 33511.6458115683. The cubic root of 1123030405 is about 1039.4346054633.

Adding to 1123030405 its reverse (5040303211), we get a palindrome (6163333616).

The spelling of 1123030405 in words is "one billion, one hundred twenty-three million, thirty thousand, four hundred five".