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131222332105 = 531846595691
BaseRepresentation
bin111101000110101110…
…1011110001011001001
3110112201002222011001021
41322031131132023021
54122220404111410
6140141021552441
712323545263544
oct1721535361311
9415632864037
10131222332105
1150718649357
1221522115721
13c4b31b7a77
1464cb96d85b
153630310eda
hex1e8d75e2c9

131222332105 has 8 divisors (see below), whose sum is σ = 162546372864. Its totient is φ = 101591482800.

The previous prime is 131222332103. The next prime is 131222332123. The reversal of 131222332105 is 501233222131.

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

It is not a de Polignac number, because 131222332105 - 21 = 131222332103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131222332105.

It is not an unprimeable number, because it can be changed into a prime (131222332103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423297691 + ... + 423298000.

It is an arithmetic number, because the mean of its divisors is an integer number (20318296608).

Almost surely, 2131222332105 is an apocalyptic number.

It is an amenable number.

131222332105 is a deficient number, since it is larger than the sum of its proper divisors (31324040759).

131222332105 is an equidigital number, since it uses as much as digits as its factorization.

131222332105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846595727.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 131222332105 its reverse (501233222131), we get a palindrome (632455554236).

The spelling of 131222332105 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirty-two thousand, one hundred five".

Divisors: 1 5 31 155 846595691 4232978455 26244466421 131222332105