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120301311221 = 7131987779337
BaseRepresentation
bin111000000001010000…
…1000101010011110101
3102111112000010210210022
41300002201011103311
53432334113424341
6131133214334525
711456115162530
oct1600241052365
9374460123708
10120301311221
1147023a54763
121b3947ba445
13b462753c30
145b7337ba17
1531e1672e4b
hex1c028454f5

120301311221 has 32 divisors (see below), whose sum is σ = 156035631360. Its totient is φ = 90069843456.

The previous prime is 120301311217. The next prime is 120301311289. The reversal of 120301311221 is 122113103021.

It is a cyclic number.

It is not a de Polignac number, because 120301311221 - 22 = 120301311217 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120301311221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120301331221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1476665 + ... + 1556001.

It is an arithmetic number, because the mean of its divisors is an integer number (4876113480).

Almost surely, 2120301311221 is an apocalyptic number.

It is an amenable number.

120301311221 is a deficient number, since it is larger than the sum of its proper divisors (35734320139).

120301311221 is a wasteful number, since it uses less digits than its factorization.

120301311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80253.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120301311221 its reverse (122113103021), we get a palindrome (242414414242).

The spelling of 120301311221 in words is "one hundred twenty billion, three hundred one million, three hundred eleven thousand, two hundred twenty-one".

Divisors: 1 7 13 19 91 133 247 877 1729 6139 11401 16663 79337 79807 116641 216619 555359 1031381 1507403 1516333 7219667 10551821 19596239 69578549 137173673 487049843 904521137 1321992431 6331647959 9253947017 17185901603 120301311221