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20031033221100 = 223352112433141601
BaseRepresentation
bin1001000110111110101101…
…00111101001111111101100
32121220221121010221110221000
410203133112213221333230
510111142024001033400
6110334043555440300
74135123451034066
oct443372647517754
977827533843830
1020031033221100
116423128055400
1222b61945b6090
13b23bc2748165
144d37159c0736
1524b0be554600
hex1237d69e9fec

20031033221100 has 432 divisors, whose sum is σ = 70946419589920. Its totient is φ = 4844759040000.

The previous prime is 20031033221099. The next prime is 20031033221113. The reversal of 20031033221100 is 112233013002.

20031033221100 is a `hidden beast` number, since 2 + 0 + 0 + 310 + 33 + 221 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 141390300 + ... + 141531900.

Almost surely, 220031033221100 is an apocalyptic number.

20031033221100 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 20031033221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35473209794960).

20031033221100 is an abundant number, since it is smaller than the sum of its proper divisors (50915386368820).

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

20031033221100 is a wasteful number, since it uses less digits than its factorization.

20031033221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142079 (or 142055 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20031033221100 its reverse (112233013002), we get a palindrome (20143266234102).

The spelling of 20031033221100 in words is "twenty trillion, thirty-one billion, thirty-three million, two hundred twenty-one thousand, one hundred".