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131020231044341 = 17292199171208461
BaseRepresentation
bin11101110010100110000110…
…010101000110110011110101
3122011220102010011201020202102
4131302212012111012303311
5114133113413121404331
61142353510241551445
736411620315410202
oct3562460625066365
9564812104636672
10131020231044341
1138824405809181
1212840722345585
135815202062082
14244d5ad470ca9
15102320beb84cb
hex772986546cf5

131020231044341 has 16 divisors (see below), whose sum is σ = 143511774902640. Its totient is φ = 119060340833280.

The previous prime is 131020231044323. The next prime is 131020231044349. The reversal of 131020231044341 is 143440132020131.

It can be written as a sum of positive squares in 8 ways, for example, as 4674875325316 + 126345355719025 = 2162146^2 + 11240345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131020231044341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020231044349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107814851 + ... + 109023311.

It is an arithmetic number, because the mean of its divisors is an integer number (8969485931415).

Almost surely, 2131020231044341 is an apocalyptic number.

It is an amenable number.

131020231044341 is a deficient number, since it is larger than the sum of its proper divisors (12491543858299).

131020231044341 is a wasteful number, since it uses less digits than its factorization.

131020231044341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428424.

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

Adding to 131020231044341 its reverse (143440132020131), we get a palindrome (274460363064472).

The spelling of 131020231044341 in words is "one hundred thirty-one trillion, twenty billion, two hundred thirty-one million, forty-four thousand, three hundred forty-one".

Divisors: 1 17 29 493 219917 1208461 3738589 6377593 20543837 35045369 108419081 595771273 265761117737 4517939001529 7707072414373 131020231044341