1123041538 has 16 divisors (see below), whose sum is σ = 1755921024. Its totient is φ = 538187760.

The previous prime is 1123041533. The next prime is 1123041581. The reversal of 1123041538 is 8351403211.

It is a happy number.

It is a super-2 number, since 2×1123041538² = 2522444592146810888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123041533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108298 + ... + 118213.

It is an arithmetic number, because the mean of its divisors is an integer number (109745064).

Almost surely, 2^1123041538 is an apocalyptic number.

1123041538 is a deficient number, since it is larger than the sum of its proper divisors (632879486).

1123041538 is a wasteful number, since it uses less digits than its factorization.

1123041538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226617.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1123041538 is about 33511.8119175911. The cubic root of 1123041538 is about 1039.4380402136.

Adding to 1123041538 its reverse (8351403211), we get a palindrome (9474444749).

The spelling of 1123041538 in words is "one billion, one hundred twenty-three million, forty-one thousand, five hundred thirty-eight".