Base | Representation |
---|---|
bin | 111101001010000000… |
… | …1000000100100001111 |
3 | 110112222202220200011012 |
4 | 1322110001000210033 |
5 | 4122432032430221 |
6 | 140155551115435 |
7 | 12326352140615 |
oct | 1722401004417 |
9 | 415882820135 |
10 | 131332311311 |
11 | 50774736363 |
12 | 21552b12b7b |
13 | c4ccc13816 |
14 | 64dc3db6b5 |
15 | 3639cd765b |
hex | 1e9404090f |
131332311311 has 4 divisors (see below), whose sum is σ = 131353942992. Its totient is φ = 131310679632.
The previous prime is 131332311307. The next prime is 131332311389. The reversal of 131332311311 is 113113233131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113113233131 = 11131 ⋅10162001.
It is a cyclic number.
It is not a de Polignac number, because 131332311311 - 22 = 131332311307 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131332311211) 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, 10806731 + ... + 10818876.
It is an arithmetic number, because the mean of its divisors is an integer number (32838485748).
Almost surely, 2131332311311 is an apocalyptic number.
131332311311 is a deficient number, since it is larger than the sum of its proper divisors (21631681).
131332311311 is an equidigital number, since it uses as much as digits as its factorization.
131332311311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21631680.
The product of its digits is 486, while the sum is 23.
Adding to 131332311311 its reverse (113113233131), we get a palindrome (244445544442).
The spelling of 131332311311 in words is "one hundred thirty-one billion, three hundred thirty-two million, three hundred eleven thousand, three hundred eleven".
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