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21010223313233 = 7211292139762819
BaseRepresentation
bin1001100011011110100101…
…11001011011000101010001
32202101120001120212001102122
410301233102321123011101
510223212414132010413
6112403544025424025
74265636630345600
oct461572271330521
982346046761378
1021010223313233
116770427363530
122433b0933b015
13b953425c753b
14528c86357a37
152667cddbc108
hex131bd2e5b151

21010223313233 has 48 divisors (see below), whose sum is σ = 27583442827200. Its totient is φ = 15806074193280.

The previous prime is 21010223313229. The next prime is 21010223313263. The reversal of 21010223313233 is 33231332201012.

It is not a de Polignac number, because 21010223313233 - 22 = 21010223313229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010223313263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334425098 + ... + 334487916.

It is an arithmetic number, because the mean of its divisors is an integer number (574655058900).

Almost surely, 221010223313233 is an apocalyptic number.

It is an amenable number.

21010223313233 is a deficient number, since it is larger than the sum of its proper divisors (6573219513967).

21010223313233 is a wasteful number, since it uses less digits than its factorization.

21010223313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84270 (or 84263 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21010223313233 its reverse (33231332201012), we get a palindrome (54241555514245).

The spelling of 21010223313233 in words is "twenty-one trillion, ten billion, two hundred twenty-three million, three hundred thirteen thousand, two hundred thirty-three".

Divisors: 1 7 11 29 49 77 203 319 539 1421 2233 15631 21397 62819 149779 235367 439733 620513 691009 1048453 1647569 1821751 3078131 4343591 4837063 6825643 11532983 12752257 20039261 30405137 33859441 47779501 89265799 140274827 334456507 981923789 1344138143 9408967001 14785519573 38980006147 65862769007 103498637011 272860043029 428780067617 724490459077 1910020301203 3001460473319 21010223313233