20423310000 has 200 divisors, whose sum is σ = 68797977600. Its totient is φ = 5209248000.

The previous prime is 20423309983. The next prime is 20423310029. The reversal of 20423310000 is 1332402.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×20423310000² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 675201 + ... + 704799.

It is an arithmetic number, because the mean of its divisors is an integer number (343989888).

Almost surely, 2^20423310000 is an apocalyptic number.

20423310000 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 20423310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34398988800).

20423310000 is an abundant number, since it is smaller than the sum of its proper divisors (48374667600).

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

20423310000 is a wasteful number, since it uses less digits than its factorization.

20423310000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29653 (or 29632 counting only the distinct ones).

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

Adding to 20423310000 its reverse (1332402), we get a palindrome (20424642402).

The spelling of 20423310000 in words is "twenty billion, four hundred twenty-three million, three hundred ten thousand".