20113133235 has 64 divisors (see below), whose sum is σ = 35459278848. Its totient is φ = 9673265664.

The previous prime is 20113133213. The next prime is 20113133239. The reversal of 20113133235 is 53233131102.

It is not a de Polignac number, because 20113133235 - 2¹¹ = 20113131187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20113133239) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 5891389 + ... + 5894801.

It is an arithmetic number, because the mean of its divisors is an integer number (554051232).

Almost surely, 2^20113133235 is an apocalyptic number.

20113133235 is a deficient number, since it is larger than the sum of its proper divisors (15346145613).

20113133235 is a wasteful number, since it uses less digits than its factorization.

20113133235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 20113133235 its reverse (53233131102), we get a palindrome (73346264337).

The spelling of 20113133235 in words is "twenty billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred thirty-five".