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131222131103 = 741597749491
BaseRepresentation
bin111101000110101110…
…0101101000110011111
3110112201002120221022202
41322031130231012133
54122220331143403
6140141013402115
712323543465540
oct1721534550637
9415632527282
10131222131103
1150718521338
122152203933b
13c4b314742b
1464cb91a4c7
1536302c1688
hex1e8d72d19f

131222131103 has 16 divisors (see below), whose sum is σ = 156229758720. Its totient is φ = 107872900800.

The previous prime is 131222131093. The next prime is 131222131123. The reversal of 131222131103 is 301131222131.

It is a happy number.

It is not a de Polignac number, because 131222131103 - 214 = 131222114719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222131123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3857813 + ... + 3891678.

It is an arithmetic number, because the mean of its divisors is an integer number (9764359920).

Almost surely, 2131222131103 is an apocalyptic number.

131222131103 is a deficient number, since it is larger than the sum of its proper divisors (25007627617).

131222131103 is an equidigital number, since it uses as much as digits as its factorization.

131222131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749598.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131222131103 its reverse (301131222131), we get a palindrome (432353353234).

The spelling of 131222131103 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred thirty-one thousand, one hundred three".

Divisors: 1 7 41 59 287 413 2419 16933 7749491 54246437 317729131 457219969 2224103917 3200539783 18746018729 131222131103