1123815536 has 10 divisors (see below), whose sum is σ = 2177392632. Its totient is φ = 561907760.

The previous prime is 1123815533. The next prime is 1123815611. The reversal of 1123815536 is 6355183211.

It is a super-2 number, since 2×1123815536² = 2525922717909934592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123815496 and 1123815505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123815533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35119220 + ... + 35119251.

Almost surely, 2^1123815536 is an apocalyptic number.

1123815536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1123815536 is a deficient number, since it is larger than the sum of its proper divisors (1053577096).

1123815536 is an equidigital number, since it uses as much as digits as its factorization.

1123815536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70238479 (or 70238473 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 1123815536 is about 33523.3580656831. The cubic root of 1123815536 is about 1039.6767782545.

Adding to 1123815536 its reverse (6355183211), we get a palindrome (7478998747).

The spelling of 1123815536 in words is "one billion, one hundred twenty-three million, eight hundred fifteen thousand, five hundred thirty-six".