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131423143100231 = 1797716074923937
BaseRepresentation
bin11101111000011101010101…
…110000100111111101000111
3122020022221002210211101110002
4131320131111300213331013
5114211214044113201411
61143302543005351515
736453003000363113
oct3570352560477507
9566287083741402
10131423143100231
113896a2730a4234
12128a682886859b
1358441c2aa26b8
142464cb22a6743
15102d93e38333b
hex778755c27f47

131423143100231 has 16 divisors (see below), whose sum is σ = 139383055319616. Its totient is φ = 123488848429056.

The previous prime is 131423143100167. The next prime is 131423143100257. The reversal of 131423143100231 is 132001341324131.

It is a cyclic number.

It is not a de Polignac number, because 131423143100231 - 26 = 131423143100167 is a prime.

It is a super-2 number, since 2×1314231431002312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131423143100194 and 131423143100203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131423143300231) 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, 24228695 + ... + 29152631.

It is an arithmetic number, because the mean of its divisors is an integer number (8711440957476).

Almost surely, 2131423143100231 is an apocalyptic number.

131423143100231 is a deficient number, since it is larger than the sum of its proper divisors (7959912219385).

131423143100231 is a wasteful number, since it uses less digits than its factorization.

131423143100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4926538.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 131423143100231 its reverse (132001341324131), we get a palindrome (263424484424362).

The spelling of 131423143100231 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, one hundred forty-three million, one hundred thousand, two hundred thirty-one".

Divisors: 1 17 977 1607 16609 27319 1570039 4923937 26690663 83706929 4810686449 7912766759 81781669633 134517034903 7730773123543 131423143100231