123320020033 has 4 divisors (see below), whose sum is σ = 140937165760. Its totient is φ = 105702874308.

The previous prime is 123320020027. The next prime is 123320020063. The reversal of 123320020033 is 330020023321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 330020023321 = 65027 ⋅5075123.

It is a cyclic number.

It is not a de Polignac number, because 123320020033 - 2⁵ = 123320020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123320020013) 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 3 ways as a sum of consecutive naturals, for example, 8808572853 + ... + 8808572866.

It is an arithmetic number, because the mean of its divisors is an integer number (35234291440).

Almost surely, 2^123320020033 is an apocalyptic number.

It is an amenable number.

123320020033 is a deficient number, since it is larger than the sum of its proper divisors (17617145727).

123320020033 is an equidigital number, since it uses as much as digits as its factorization.

123320020033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17617145726.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 123320020033 its reverse (330020023321), we get a palindrome (453340043354).

The spelling of 123320020033 in words is "one hundred twenty-three billion, three hundred twenty million, twenty thousand, thirty-three".