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131401211105 = 52329211186733
BaseRepresentation
bin111101001100000011…
…1110101110011100001
3110120011120120010220102
41322120013311303201
54123102202223410
6140210451552145
712331146602633
oct1723007656341
9416146503812
10131401211105
11507aa61583a
1221571bbb655
13c511288628
146507614a53
153640d972a5
hex1e981f5ce1

131401211105 has 32 divisors (see below), whose sum is σ = 171018466560. Its totient is φ = 96622606080.

The previous prime is 131401211099. The next prime is 131401211107. The reversal of 131401211105 is 501112104131.

It is not a de Polignac number, because 131401211105 - 26 = 131401211041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131401211107) 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, 610319 + ... + 797051.

It is an arithmetic number, because the mean of its divisors is an integer number (5344327080).

Almost surely, 2131401211105 is an apocalyptic number.

It is an amenable number.

131401211105 is a deficient number, since it is larger than the sum of its proper divisors (39617255455).

131401211105 is a wasteful number, since it uses less digits than its factorization.

131401211105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187001.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 131401211105 its reverse (501112104131), we get a palindrome (632513315236).

The spelling of 131401211105 in words is "one hundred thirty-one billion, four hundred one million, two hundred eleven thousand, one hundred five".

Divisors: 1 5 23 29 115 145 211 667 1055 3335 4853 6119 24265 30595 140737 186733 703685 933665 4294859 5415257 21474295 27076285 39400663 124550911 197003315 622754555 906215249 1142619227 4531076245 5713096135 26280242221 131401211105