1123204336 has 20 divisors (see below), whose sum is σ = 2251251000. Its totient is φ = 542236352.

The previous prime is 1123204319. The next prime is 1123204337. The reversal of 1123204336 is 6334023211.

It is a self number, because there is not a number n which added to its sum of digits gives 1123204336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123204337) 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, 1209886 + ... + 1210813.

It is an arithmetic number, because the mean of its divisors is an integer number (112562550).

Almost surely, 2^1123204336 is an apocalyptic number.

1123204336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1123204336 is an abundant number, since it is smaller than the sum of its proper divisors (1128046664).

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

1123204336 is a wasteful number, since it uses less digits than its factorization.

1123204336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420736 (or 2420730 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1123204336 is about 33514.2407940266. The cubic root of 1123204336 is about 1039.4882640187.

Adding to 1123204336 its reverse (6334023211), we get a palindrome (7457227547).

The spelling of 1123204336 in words is "one billion, one hundred twenty-three million, two hundred four thousand, three hundred thirty-six".