20010320032 has 12 divisors (see below), whose sum is σ = 39395317626. Its totient is φ = 10005160000.

The previous prime is 20010319993. The next prime is 20010320039. The reversal of 20010320032 is 23002301002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19925016336 + 85303696 = 141156^2 + 9236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20010319994 and 20010320021.

It is not an unprimeable number, because it can be changed into a prime (20010320039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312661219 + ... + 312661282.

Almost surely, 2^20010320032 is an apocalyptic number.

It is an amenable number.

20010320032 is a deficient number, since it is larger than the sum of its proper divisors (19384997594).

20010320032 is an equidigital number, since it uses as much as digits as its factorization.

20010320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625322511 (or 625322503 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20010320032 its reverse (23002301002), we get a palindrome (43012621034).

The spelling of 20010320032 in words is "twenty billion, ten million, three hundred twenty thousand, thirty-two".