20330000123 has 6 divisors (see below), whose sum is σ = 21055209084. Its totient is φ = 19628964824.

The previous prime is 20330000099. The next prime is 20330000129. The reversal of 20330000123 is 32100003302.

It is not a de Polignac number, because 20330000123 - 2²⁰ = 20328951547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330000098 and 20330000107.

It is not an unprimeable number, because it can be changed into a prime (20330000129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12085961 + ... + 12087642.

It is an arithmetic number, because the mean of its divisors is an integer number (3509201514).

Almost surely, 2^20330000123 is an apocalyptic number.

20330000123 is a deficient number, since it is larger than the sum of its proper divisors (725208961).

20330000123 is an equidigital number, since it uses as much as digits as its factorization.

20330000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24173661 (or 24173632 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20330000123 its reverse (32100003302), we get a palindrome (52430003425).

The spelling of 20330000123 in words is "twenty billion, three hundred thirty million, one hundred twenty-three", and thus it is an aban number.