20235230433 has 32 divisors (see below), whose sum is σ = 32711387520. Its totient is φ = 12260782080.

The previous prime is 20235230369. The next prime is 20235230459. The reversal of 20235230433 is 33403253202.

20235230433 is a `hidden beast` number, since 2 + 0 + 2 + 352 + 304 + 3 + 3 = 666.

It is not a de Polignac number, because 20235230433 - 2⁶ = 20235230369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20235230397 and 20235230406.

It is not an unprimeable number, because it can be changed into a prime (20235230473) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2162541 + ... + 2171877.

It is an arithmetic number, because the mean of its divisors is an integer number (1022230860).

Almost surely, 2^20235230433 is an apocalyptic number.

It is an amenable number.

20235230433 is a deficient number, since it is larger than the sum of its proper divisors (12476157087).

20235230433 is a wasteful number, since it uses less digits than its factorization.

20235230433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16654 (or 16648 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 20235230433 its reverse (33403253202), we get a palindrome (53638483635).

The spelling of 20235230433 in words is "twenty billion, two hundred thirty-five million, two hundred thirty thousand, four hundred thirty-three".