1123234040 has 16 divisors (see below), whose sum is σ = 2527276680. Its totient is φ = 449293600.

The previous prime is 1123234009. The next prime is 1123234043. The reversal of 1123234040 is 404323211.

It is a super-2 number, since 2×1123234040² = 2523309417229443200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123234043) 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, 14040386 + ... + 14040465.

Almost surely, 2^1123234040 is an apocalyptic number.

1123234040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123234040 is an abundant number, since it is smaller than the sum of its proper divisors (1404042640).

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

1123234040 is a wasteful number, since it uses less digits than its factorization.

1123234040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28080862 (or 28080858 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1123234040 is about 33514.6839459960. The cubic root of 1123234040 is about 1039.4974272927.

Adding to 1123234040 its reverse (404323211), we get a palindrome (1527557251).

The spelling of 1123234040 in words is "one billion, one hundred twenty-three million, two hundred thirty-four thousand, forty".