1123155304 has 16 divisors (see below), whose sum is σ = 2137348800. Its totient is φ = 553195632.

The previous prime is 1123155301. The next prime is 1123155317. The reversal of 1123155304 is 4035513211.

It is a happy number.

It is a super-2 number, since 2×1123155304² = 2522955673806664832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123155301) 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 3 ways as a sum of consecutive naturals, for example, 1047184 + ... + 1048255.

It is an arithmetic number, because the mean of its divisors is an integer number (133584300).

Almost surely, 2^1123155304 is an apocalyptic number.

It is an amenable number.

1123155304 is a deficient number, since it is larger than the sum of its proper divisors (1014193496).

1123155304 is a wasteful number, since it uses less digits than its factorization.

1123155304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095512 (or 2095508 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1123155304 is about 33513.5092761113. The cubic root of 1123155304 is about 1039.4731379701.

Adding to 1123155304 its reverse (4035513211), we get a palindrome (5158668515).

The spelling of 1123155304 in words is "one billion, one hundred twenty-three million, one hundred fifty-five thousand, three hundred four".