20233231232 has 32 divisors (see below), whose sum is σ = 40343111400. Its totient is φ = 10107901440.

The previous prime is 20233231231. The next prime is 20233231243. The reversal of 20233231232 is 23213233202.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 20233231198 and 20233231207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233231231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82394 + ... + 217382.

Almost surely, 2^20233231232 is an apocalyptic number.

It is an amenable number.

20233231232 is a deficient number, since it is larger than the sum of its proper divisors (20109880168).

20233231232 is a wasteful number, since it uses less digits than its factorization.

20233231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136174 (or 136162 counting only the distinct ones).

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

Adding to 20233231232 its reverse (23213233202), we get a palindrome (43446464434).

The spelling of 20233231232 in words is "twenty billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred thirty-two".