20302120232 has 16 divisors (see below), whose sum is σ = 38069353140. Its totient is φ = 10150292736.

The previous prime is 20302120229. The next prime is 20302120243. The reversal of 20302120232 is 23202120302.

It can be written as a sum of positive squares in 2 ways, for example, as 18050997316 + 2251122916 = 134354^2 + 47446^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20302120232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25568 + ... + 203120.

Almost surely, 2^20302120232 is an apocalyptic number.

It is an amenable number.

20302120232 is a deficient number, since it is larger than the sum of its proper divisors (17767232908).

20302120232 is a wasteful number, since it uses less digits than its factorization.

20302120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191852 (or 191848 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20302120232 its reverse (23202120302), we get a palindrome (43504240534).

The spelling of 20302120232 in words is "twenty billion, three hundred two million, one hundred twenty thousand, two hundred thirty-two".