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131020443023141 = 72103130719862329
BaseRepresentation
bin11101110010100110010010…
…111101101111011100100101
3122011220102122221120220000002
4131302212102331233130211
5114133114331403220031
61142353543253231045
736411625501245200
oct3562462275573445
9564812587526002
10131020443023141
1138824504432a71
1212840781332485
135815236c51809
14244d5cd690937
1510232208dbccb
hex772992f6f725

131020443023141 has 24 divisors (see below), whose sum is σ = 154009011049920. Its totient is φ = 111127818376512.

The previous prime is 131020443023137. The next prime is 131020443023209. The reversal of 131020443023141 is 141320344020131.

It is not a de Polignac number, because 131020443023141 - 22 = 131020443023137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020443023111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3334736 + ... + 16527593.

It is an arithmetic number, because the mean of its divisors is an integer number (6417042127080).

Almost surely, 2131020443023141 is an apocalyptic number.

It is an amenable number.

131020443023141 is a deficient number, since it is larger than the sum of its proper divisors (22988568026779).

131020443023141 is a wasteful number, since it uses less digits than its factorization.

131020443023141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19863753 (or 19863746 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131020443023141 its reverse (141320344020131), we get a palindrome (272340787043272).

The spelling of 131020443023141 in words is "one hundred thirty-one trillion, twenty billion, four hundred forty-three million, twenty-three thousand, one hundred forty-one".

Divisors: 1 7 49 103 721 1307 5047 9149 64043 134621 942347 6596429 19862329 139036303 973254121 2045819887 14320739209 25960064003 100245174463 181720448021 1272043136147 2673886592309 18717206146163 131020443023141