1123345578 has 8 divisors (see below), whose sum is σ = 2246691168. Its totient is φ = 374448524.

The previous prime is 1123345513. The next prime is 1123345583. The reversal of 1123345578 is 8755433211.

It is a happy number.

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

1123345578 is an admirable number.

It is a super-2 number, since 2×1123345578² = 2523810575224308168, which contains 22 as substring.

It is a plaindrome in base 10.

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, 93612126 + ... + 93612137.

It is an arithmetic number, because the mean of its divisors is an integer number (280836396).

Almost surely, 2^1123345578 is an apocalyptic number.

1123345578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123345578 is a wasteful number, since it uses less digits than its factorization.

1123345578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187224268.

The product of its digits is 100800, while the sum is 39.

The square root of 1123345578 is about 33516.3479215740. The cubic root of 1123345578 is about 1039.5318337840.

Adding to 1123345578 its reverse (8755433211), we get a palindrome (9878778789).

The spelling of 1123345578 in words is "one billion, one hundred twenty-three million, three hundred forty-five thousand, five hundred seventy-eight".