Base | Representation |
---|---|
bin | 111101001001101010… |
… | …1111001110000001101 |
3 | 110112221222122120100001 |
4 | 1322103111321300031 |
5 | 4122421134324323 |
6 | 140154505004301 |
7 | 12326154115000 |
oct | 1722325716015 |
9 | 415858576301 |
10 | 131321011213 |
11 | 50769318437 |
12 | 2154b183691 |
13 | c4ca788282 |
14 | 64daad9537 |
15 | 3638d043ad |
hex | 1e93579c0d |
131321011213 has 16 divisors (see below), whose sum is σ = 156879273600. Its totient is φ = 109815468000.
The previous prime is 131321011189. The next prime is 131321011223. The reversal of 131321011213 is 312110123131.
It is not a de Polignac number, because 131321011213 - 29 = 131321010701 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131321011223) 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, 4654963 + ... + 4683088.
It is an arithmetic number, because the mean of its divisors is an integer number (9804954600).
Almost surely, 2131321011213 is an apocalyptic number.
It is an amenable number.
131321011213 is a deficient number, since it is larger than the sum of its proper divisors (25558262387).
131321011213 is an frugal number, since it uses more digits than its factorization.
131321011213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9338113 (or 9338099 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 19.
Adding to 131321011213 its reverse (312110123131), we get a palindrome (443431134344).
The spelling of 131321011213 in words is "one hundred thirty-one billion, three hundred twenty-one million, eleven thousand, two hundred thirteen".
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