20023122123 has 48 divisors (see below), whose sum is σ = 30637919520. Its totient is φ = 12582484992.

The previous prime is 20023122103. The next prime is 20023122149. The reversal of 20023122123 is 32122132002.

It is not a de Polignac number, because 20023122123 - 2²⁴ = 20006344907 is a prime.

It is a super-3 number, since 3×20023122123³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20023122096 and 20023122105.

It is not an unprimeable number, because it can be changed into a prime (20023122103) 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 47 ways as a sum of consecutive naturals, for example, 1970965 + ... + 1981097.

It is an arithmetic number, because the mean of its divisors is an integer number (638289990).

Almost surely, 2^20023122123 is an apocalyptic number.

20023122123 is a deficient number, since it is larger than the sum of its proper divisors (10614797397).

20023122123 is a wasteful number, since it uses less digits than its factorization.

20023122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10348 (or 10345 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20023122123 its reverse (32122132002), we get a palindrome (52145254125).

The spelling of 20023122123 in words is "twenty billion, twenty-three million, one hundred twenty-two thousand, one hundred twenty-three".