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11301322221 = 327243595967
BaseRepresentation
bin10101000011001110…
…00111110111101101
31002011121102122121200
422201213013313231
5141121114302341
65105230320113
7550025440200
oct124147076755
932147378550
1011301322221
11487a335722
122234959039
1310b1499217
14792d09937
1546225edb6
hex2a19c7ded

11301322221 has 36 divisors (see below), whose sum is σ = 19430940672. Its totient is φ = 6307704144.

The previous prime is 11301322199. The next prime is 11301322229. The reversal of 11301322221 is 12222310311.

It is not a de Polignac number, because 11301322221 - 26 = 11301322157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11301322194 and 11301322203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11301322229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 279021 + ... + 316946.

It is an arithmetic number, because the mean of its divisors is an integer number (539748352).

Almost surely, 211301322221 is an apocalyptic number.

It is an amenable number.

11301322221 is a deficient number, since it is larger than the sum of its proper divisors (8129618451).

11301322221 is a wasteful number, since it uses less digits than its factorization.

11301322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596030 (or 596020 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11301322221 its reverse (12222310311), we get a palindrome (23523632532).

The spelling of 11301322221 in words is "eleven billion, three hundred one million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 3 7 9 21 43 49 63 129 147 301 387 441 903 2107 2709 6321 18963 595967 1787901 4171769 5363703 12515307 25626581 29202383 37545921 76879743 87607149 179386067 230639229 262821447 538158201 1255702469 1614474603 3767107407 11301322221