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20130331321110 = 23523598913939971
BaseRepresentation
bin1001001001110111101010…
…01111110110001100010110
32122021102220101211121101210
410210323311033312030112
510114303404304233420
6110451425130402250
74145240242665663
oct444736517661426
978242811747353
1020130331321110
11646125326366a
122311487290386
13b30388a0175a
144d8455730a6a
1524d981d439e0
hex124ef53f6316

20130331321110 has 256 divisors, whose sum is σ = 52218141696000. Its totient is φ = 4954919101440.

The previous prime is 20130331321109. The next prime is 20130331321157. The reversal of 20130331321110 is 1112313303102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 503603425 + ... + 503643395.

It is an arithmetic number, because the mean of its divisors is an integer number (203977116000).

Almost surely, 220130331321110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20130331321110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26109070848000).

20130331321110 is an abundant number, since it is smaller than the sum of its proper divisors (32087810374890).

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

20130331321110 is a wasteful number, since it uses less digits than its factorization.

20130331321110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40291.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20130331321110 its reverse (1112313303102), we get a palindrome (21242644624212).

The spelling of 20130331321110 in words is "twenty trillion, one hundred thirty billion, three hundred thirty-one million, three hundred twenty-one thousand, one hundred ten".