20023123120 has 320 divisors, whose sum is σ = 63545932800. Its totient is φ = 5665075200.

The previous prime is 20023123103. The next prime is 20023123123. The reversal of 20023123120 is 2132132002.

It is a super-3 number, since 3×20023123120³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20023123094 and 20023123103.

It is not an unprimeable number, because it can be changed into a prime (20023123123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4882831 + ... + 4886929.

It is an arithmetic number, because the mean of its divisors is an integer number (198581040).

Almost surely, 2^20023123120 is an apocalyptic number.

20023123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023123120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31772966400).

20023123120 is an abundant number, since it is smaller than the sum of its proper divisors (43522809680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20023123120 is a wasteful number, since it uses less digits than its factorization.

20023123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204 (or 4198 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20023123120 its reverse (2132132002), we get a palindrome (22155255122).

The spelling of 20023123120 in words is "twenty billion, twenty-three million, one hundred twenty-three thousand, one hundred twenty".