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131161351347 = 32131121037191
BaseRepresentation
bin111101000100111010…
…0110110010010110011
3110112112212020000011200
41322021310312102303
54122104301220342
6140131002542243
712322205043225
oct1721164662263
9415485200150
10131161351347
1150697188634
1221505807983
13c4a3686590
1464c3818415
153629cb794c
hex1e89d364b3

131161351347 has 12 divisors (see below), whose sum is σ = 204028768944. Its totient is φ = 80714677680.

The previous prime is 131161351337. The next prime is 131161351357. The reversal of 131161351347 is 743153161131.

131161351347 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 613 + 5 + 1 + 34 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (131161351337) and next prime (131161351357).

It is not a de Polignac number, because 131161351347 - 24 = 131161351331 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (131161351337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560518479 + ... + 560518712.

It is an arithmetic number, because the mean of its divisors is an integer number (17002397412).

Almost surely, 2131161351347 is an apocalyptic number.

131161351347 is a deficient number, since it is larger than the sum of its proper divisors (72867417597).

131161351347 is a wasteful number, since it uses less digits than its factorization.

131161351347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121037210 (or 1121037207 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The spelling of 131161351347 in words is "one hundred thirty-one billion, one hundred sixty-one million, three hundred fifty-one thousand, three hundred forty-seven".

Divisors: 1 3 9 13 39 117 1121037191 3363111573 10089334719 14573483483 43720450449 131161351347