20331123235 has 16 divisors (see below), whose sum is σ = 26052791040. Its totient is φ = 15197454720.

The previous prime is 20331123227. The next prime is 20331123257. The reversal of 20331123235 is 53232113302.

It is not a de Polignac number, because 20331123235 - 2³ = 20331123227 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2257032 + ... + 2266021.

It is an arithmetic number, because the mean of its divisors is an integer number (1628299440).

Almost surely, 2^20331123235 is an apocalyptic number.

20331123235 is a deficient number, since it is larger than the sum of its proper divisors (5721667805).

20331123235 is a wasteful number, since it uses less digits than its factorization.

20331123235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523118.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 20331123235 its reverse (53232113302), we get a palindrome (73563236537).

The spelling of 20331123235 in words is "twenty billion, three hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty-five".