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43012131141 = 3735323772441
BaseRepresentation
bin101000000011101110…
…010000100101000101
311010000120220122122010
4220003232100211011
51201042101144031
631432015124433
73051611040150
oct500356204505
9133016818563
1043012131141
1117272254821
128404813719
134096123695
142120650c97
1511bb175246
hexa03b90945

43012131141 has 32 divisors (see below), whose sum is σ = 65782556928. Its totient is φ = 24488386560.

The previous prime is 43012131139. The next prime is 43012131187. The reversal of 43012131141 is 14113121034.

It is not a de Polignac number, because 43012131141 - 21 = 43012131139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43012131941) 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, 17619481 + ... + 17621921.

It is an arithmetic number, because the mean of its divisors is an integer number (2055704904).

Almost surely, 243012131141 is an apocalyptic number.

It is an amenable number.

43012131141 is a deficient number, since it is larger than the sum of its proper divisors (22770425787).

43012131141 is a wasteful number, since it uses less digits than its factorization.

43012131141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5181.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 43012131141 its reverse (14113121034), we get a palindrome (57125252175).

The spelling of 43012131141 in words is "forty-three billion, twelve million, one hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 3 7 21 353 1059 2377 2441 2471 7131 7323 7413 16639 17087 49917 51261 839081 861673 2517243 2585019 5802257 5873567 6031711 17406771 17620701 18095133 40615799 121847397 2048196721 6144590163 14337377047 43012131141