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42102122131201 = 1129131981574079
BaseRepresentation
bin10011001001010101010100…
…00010001010111100000001
312112001220221021120122021011
421210222222002022330001
521004300121231144301
6225313240425000521
711603530556250526
oct1144525202127401
9175056837518234
1042102122131201
11124624563855a0
12487b80b623141
131a652a01a78b2
14a57a79b9714d
154d028d3bda51
hex264aaa08af01

42102122131201 has 8 divisors (see below), whose sum is σ = 47513366668800. Its totient is φ = 36954840741840.

The previous prime is 42102122131169. The next prime is 42102122131217. The reversal of 42102122131201 is 10213122120124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42102122131201 - 25 = 42102122131169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42102122131801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65990786721 + ... + 65990787358.

It is an arithmetic number, because the mean of its divisors is an integer number (5939170833600).

Almost surely, 242102122131201 is an apocalyptic number.

It is an amenable number.

42102122131201 is a deficient number, since it is larger than the sum of its proper divisors (5411244537599).

42102122131201 is a wasteful number, since it uses less digits than its factorization.

42102122131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131981574119.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 42102122131201 its reverse (10213122120124), we get a palindrome (52315244251325).

The spelling of 42102122131201 in words is "forty-two trillion, one hundred two billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 11 29 319 131981574079 1451797314869 3827465648291 42102122131201