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120321131 = 717479839
BaseRepresentation
bin1110010101111…
…11010001101011
322101101221120012
413022333101223
5221300234011
615534522135
72660466320
oct712772153
9271357505
10120321131
1161a11057
123436634b
131bc0a148
1411da0b47
15a86aa8b
hex72bf46b

120321131 has 8 divisors (see below), whose sum is σ = 137602560. Its totient is φ = 103062888.

The previous prime is 120321083. The next prime is 120321133. The reversal of 120321131 is 131123021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120321131 - 218 = 120058987 is a prime.

It is a super-2 number, since 2×1203211312 = 28954349130238322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120321133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7310 + ... + 17148.

It is an arithmetic number, because the mean of its divisors is an integer number (17200320).

Almost surely, 2120321131 is an apocalyptic number.

120321131 is a deficient number, since it is larger than the sum of its proper divisors (17281429).

120321131 is an equidigital number, since it uses as much as digits as its factorization.

120321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11593.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 120321131 is about 10969.0989146785. The cubic root of 120321131 is about 493.6820102718.

Adding to 120321131 its reverse (131123021), we get a palindrome (251444152).

The spelling of 120321131 in words is "one hundred twenty million, three hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 7 1747 9839 12229 68873 17188733 120321131