20302201232 has 20 divisors (see below), whose sum is σ = 39339745116. Its totient is φ = 10150008960.

The previous prime is 20302201219. The next prime is 20302201237. The reversal of 20302201232 is 23210220302.

It can be written as a sum of positive squares in 2 ways, for example, as 11448144016 + 8854057216 = 106996^2 + 94096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20302201232.

It is not an unprimeable number, because it can be changed into a prime (20302201237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97382 + ... + 223802.

Almost surely, 2^20302201232 is an apocalyptic number.

It is an amenable number.

20302201232 is a deficient number, since it is larger than the sum of its proper divisors (19037543884).

20302201232 is a wasteful number, since it uses less digits than its factorization.

20302201232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136466 (or 136460 counting only the distinct ones).

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

Adding to 20302201232 its reverse (23210220302), we get a palindrome (43512421534).

The spelling of 20302201232 in words is "twenty billion, three hundred two million, two hundred one thousand, two hundred thirty-two".