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131140252341 = 347231287923
BaseRepresentation
bin111101000100010010…
…0010111001010110101
3110112111101112001210000
41322020210113022311
54122033401033331
6140124530421513
712321530516130
oct1721044271265
9415441461700
10131140252341
115068628763a
12214ba731899
13c49c1a9b67
1464c0ac5217
153627eeb0e6
hex1e889172b5

131140252341 has 20 divisors (see below), whose sum is σ = 223886710432. Its totient is φ = 74937286728.

The previous prime is 131140252283. The next prime is 131140252387. The reversal of 131140252341 is 143252041131.

131140252341 is a `hidden beast` number, since 1 + 31 + 1 + 40 + 252 + 341 = 666.

It is not a de Polignac number, because 131140252341 - 213 = 131140244149 is a prime.

It is a super-2 number, since 2×1311402523412 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131140052341) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 115643395 + ... + 115644528.

Almost surely, 2131140252341 is an apocalyptic number.

It is an amenable number.

131140252341 is a deficient number, since it is larger than the sum of its proper divisors (92746458091).

131140252341 is an equidigital number, since it uses as much as digits as its factorization.

131140252341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231287942 (or 231287933 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 131140252341 its reverse (143252041131), we get a palindrome (274392293472).

The spelling of 131140252341 in words is "one hundred thirty-one billion, one hundred forty million, two hundred fifty-two thousand, three hundred forty-one".

Divisors: 1 3 7 9 21 27 63 81 189 567 231287923 693863769 1619015461 2081591307 4857046383 6244773921 14571139149 18734321763 43713417447 131140252341