20322123000 has 128 divisors (see below), whose sum is σ = 67134899520. Its totient is φ = 5100441600.

The previous prime is 20322122959. The next prime is 20322123001. The reversal of 20322123000 is 32122302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322123001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148237 + ... + 250236.

Almost surely, 2^20322123000 is an apocalyptic number.

20322123000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20322123000 is an abundant number, since it is smaller than the sum of its proper divisors (46812776520).

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

20322123000 is a wasteful number, since it uses less digits than its factorization.

20322123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398514 (or 398500 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20322123000 its reverse (32122302), we get a palindrome (20354245302).

The spelling of 20322123000 in words is "twenty billion, three hundred twenty-two million, one hundred twenty-three thousand".