30520356236 has 6 divisors (see below), whose sum is σ = 53410623420. Its totient is φ = 15260178116.

The previous prime is 30520356221. The next prime is 30520356247. The reversal of 30520356236 is 63265302503.

It is a junction number, because it is equal to n+sod(n) for n = 30520356196 and 30520356205.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3815044526 + ... + 3815044533.

It is an arithmetic number, because the mean of its divisors is an integer number (8901770570).

Almost surely, 2^30520356236 is an apocalyptic number.

It is an amenable number.

30520356236 is a deficient number, since it is larger than the sum of its proper divisors (22890267184).

30520356236 is a wasteful number, since it uses less digits than its factorization.

30520356236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630089063 (or 7630089061 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 30520356236 its reverse (63265302503), we get a palindrome (93785658739).

The spelling of 30520356236 in words is "thirty billion, five hundred twenty million, three hundred fifty-six thousand, two hundred thirty-six".