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131201421010001 = 712091842483689
BaseRepresentation
bin11101110101001110110110…
…000101111110010001010001
3122012112201210121121012000022
4131311032312011332101101
5114144101002234310001
61143013033431433225
736430663343614016
oct3565166605762121
9565481717535008
10131201421010001
1138894234823151
121286b86a525815
1358293193966c4
14245827b30770d
151027cb3dc911b
hex7753b617e451

131201421010001 has 4 divisors (see below), whose sum is σ = 131203263564900. Its totient is φ = 131199578455104.

The previous prime is 131201421009983. The next prime is 131201421010003. The reversal of 131201421010001 is 100010124102131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41528551390225 + 89672869619776 = 6444265^2 + 9469576^2 .

It is a cyclic number.

It is not a de Polignac number, because 131201421010001 - 218 = 131201420747857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201421010003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921170636 + ... + 921313053.

It is an arithmetic number, because the mean of its divisors is an integer number (32800815891225).

Almost surely, 2131201421010001 is an apocalyptic number.

It is an amenable number.

131201421010001 is a deficient number, since it is larger than the sum of its proper divisors (1842554899).

131201421010001 is an equidigital number, since it uses as much as digits as its factorization.

131201421010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842554898.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131201421010001 its reverse (100010124102131), we get a palindrome (231211545112132).

The spelling of 131201421010001 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, ten thousand, one".

Divisors: 1 71209 1842483689 131201421010001