20301509236 has 6 divisors (see below), whose sum is σ = 35527641170. Its totient is φ = 10150754616.

The previous prime is 20301509233. The next prime is 20301509237. The reversal of 20301509236 is 63290510302.

It can be written as a sum of positive squares in only one way, i.e., 17185636836 + 3115872400 = 131094^2 + 55820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20301509198 and 20301509207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301509233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2537688651 + ... + 2537688658.

Almost surely, 2^20301509236 is an apocalyptic number.

It is an amenable number.

20301509236 is a deficient number, since it is larger than the sum of its proper divisors (15226131934).

20301509236 is a wasteful number, since it uses less digits than its factorization.

20301509236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075377313 (or 5075377311 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 20301509236 in words is "twenty billion, three hundred one million, five hundred nine thousand, two hundred thirty-six".