20133232232 has 16 divisors (see below), whose sum is σ = 37757500260. Its totient is φ = 10064565504.

The previous prime is 20133232211. The next prime is 20133232237. The reversal of 20133232232 is 23223233102.

It can be written as a sum of positive squares in 2 ways, for example, as 18625152676 + 1508079556 = 136474^2 + 38834^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20133232198 and 20133232207.

It is not an unprimeable number, because it can be changed into a prime (20133232237) 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, 214193 + ... + 293504.

Almost surely, 2^20133232232 is an apocalyptic number.

It is an amenable number.

20133232232 is a deficient number, since it is larger than the sum of its proper divisors (17624268028).

20133232232 is a wasteful number, since it uses less digits than its factorization.

20133232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512660 (or 512656 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20133232232 its reverse (23223233102), we get a palindrome (43356465334).

The spelling of 20133232232 in words is "twenty billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred thirty-two".