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120020203230121 = 1729387747515783
BaseRepresentation
bin11011010010100001100001…
…100101000101001110101001
3120201221211010022201110111201
4123102201201211011032221
5111212402334011330441
61103132304210124201
734165113343620535
oct3322414145051651
9521854108643451
10120020203230121
1135273311892007
1211564877280661
1351c7b19c4cbcc
14218d01a338bc5
15dd2003167c31
hex6d28619453a9

120020203230121 has 32 divisors (see below), whose sum is σ = 127708283501568. Its totient is φ = 112403190144000.

The previous prime is 120020203230119. The next prime is 120020203230127. The reversal of 120020203230121 is 121032302020021.

It is a cyclic number.

It is not a de Polignac number, because 120020203230121 - 21 = 120020203230119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120020203230127) 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, 20753966196 + ... + 20753971978.

It is an arithmetic number, because the mean of its divisors is an integer number (3990883859424).

Almost surely, 2120020203230121 is an apocalyptic number.

It is an amenable number.

120020203230121 is a deficient number, since it is larger than the sum of its proper divisors (7688080271447).

120020203230121 is a wasteful number, since it uses less digits than its factorization.

120020203230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120020203230121 its reverse (121032302020021), we get a palindrome (241052505250142).

The spelling of 120020203230121 in words is "one hundred twenty trillion, twenty billion, two hundred three million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 17 293 877 4751 4981 5783 14909 80767 98311 256961 1392043 1694419 4166627 4368337 5071691 23664731 27475033 28805123 70832659 86218747 467075561 1220821711 1486005463 8050184669 20753969087 24095603941 25262092871 136853139373 409625266997 7060011954713 120020203230121