20330433123 has 64 divisors (see below), whose sum is σ = 36489556992. Its totient is φ = 9723732480.

The previous prime is 20330433119. The next prime is 20330433131. The reversal of 20330433123 is 32133403302.

It is a happy number.

It is not a de Polignac number, because 20330433123 - 2² = 20330433119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20330433093 and 20330433102.

It is not an unprimeable number, because it can be changed into a prime (20330433133) 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, 1183665 + ... + 1200717.

It is an arithmetic number, because the mean of its divisors is an integer number (570149328).

Almost surely, 2^20330433123 is an apocalyptic number.

20330433123 is a deficient number, since it is larger than the sum of its proper divisors (16159123869).

20330433123 is a wasteful number, since it uses less digits than its factorization.

20330433123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17484.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20330433123 its reverse (32133403302), we get a palindrome (52463836425).

The spelling of 20330433123 in words is "twenty billion, three hundred thirty million, four hundred thirty-three thousand, one hundred twenty-three".