20330131232433 has 16 divisors (see below), whose sum is σ = 29598204609792. Its totient is φ = 12309998058000.

The previous prime is 20330131232417. The next prime is 20330131232447. The reversal of 20330131232433 is 33423213103302.

It is not a de Polignac number, because 20330131232433 - 2⁴ = 20330131232417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20330131232433.

It is not an unprimeable number, because it can be changed into a prime (20330131232233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282303403 + ... + 282375408.

It is an arithmetic number, because the mean of its divisors is an integer number (1849887788112).

Almost surely, 2^{20330131232433} is an apocalyptic number.

It is an amenable number.

20330131232433 is a deficient number, since it is larger than the sum of its proper divisors (9268073377359).

20330131232433 is a wasteful number, since it uses less digits than its factorization.

20330131232433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564679916.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 20330131232433 its reverse (33423213103302), we get a palindrome (53753344335735).

The spelling of 20330131232433 in words is "twenty trillion, three hundred thirty billion, one hundred thirty-one million, two hundred thirty-two thousand, four hundred thirty-three".