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131201313102311 = 211621807171101
BaseRepresentation
bin11101110101001110101111…
…101010010101100111100111
3122012112201112002112220111012
4131311032233222111213213
5114144100242123233221
61143013015014532435
736430660563455234
oct3565165752254747
9565481462486435
10131201313102311
1138894189920541
121286b83a36711b
1358292ccc147ba
14245826ac5878b
151027ca96b165b
hex7753afa959e7

131201313102311 has 4 divisors (see below), whose sum is σ = 131823120273624. Its totient is φ = 130579505931000.

The previous prime is 131201313102269. The next prime is 131201313102319. The reversal of 131201313102311 is 113201313102131.

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

It is a cyclic number.

It is not a de Polignac number, because 131201313102311 - 218 = 131201312840167 is a prime.

It is a super-3 number, since 3×1312013131023113 (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201313102319) 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, 310903585340 + ... + 310903585761.

It is an arithmetic number, because the mean of its divisors is an integer number (32955780068406).

Almost surely, 2131201313102311 is an apocalyptic number.

131201313102311 is a deficient number, since it is larger than the sum of its proper divisors (621807171313).

131201313102311 is an equidigital number, since it uses as much as digits as its factorization.

131201313102311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621807171312.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131201313102311 its reverse (113201313102131), we get a palindrome (244402626204442).

The spelling of 131201313102311 in words is "one hundred thirty-one trillion, two hundred one billion, three hundred thirteen million, one hundred two thousand, three hundred eleven".

Divisors: 1 211 621807171101 131201313102311