1232321136 has 20 divisors (see below), whose sum is σ = 3183496392. Its totient is φ = 410773696.

The previous prime is 1232321119. The next prime is 1232321137. The reversal of 1232321136 is 6311232321.

1232321136 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232321137) 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, 12836631 + ... + 12836726.

Almost surely, 2^1232321136 is an apocalyptic number.

1232321136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1232321136 is an abundant number, since it is smaller than the sum of its proper divisors (1951175256).

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

1232321136 is a wasteful number, since it uses less digits than its factorization.

1232321136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25673368 (or 25673362 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 1232321136 is about 35104.4318569607. The cubic root of 1232321136 is about 1072.1148193270.

Adding to 1232321136 its reverse (6311232321), we get a palindrome (7543553457).

The spelling of 1232321136 in words is "one billion, two hundred thirty-two million, three hundred twenty-one thousand, one hundred thirty-six".