20123022000 has 160 divisors (see below), whose sum is σ = 67697809920. Its totient is φ = 5132793600.

The previous prime is 20123021993. The next prime is 20123022001. The reversal of 20123022000 is 22032102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20123022001) 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 31 ways as a sum of consecutive naturals, for example, 65091 + ... + 210909.

It is an arithmetic number, because the mean of its divisors is an integer number (423111312).

Almost surely, 2^20123022000 is an apocalyptic number.

20123022000 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 20123022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33848904960).

20123022000 is an abundant number, since it is smaller than the sum of its proper divisors (47574787920).

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

20123022000 is a wasteful number, since it uses less digits than its factorization.

20123022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145868 (or 145852 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20123022000 its reverse (22032102), we get a palindrome (20145054102).

The spelling of 20123022000 in words is "twenty billion, one hundred twenty-three million, twenty-two thousand".