Base | Representation |
---|---|
bin | 1011000010000111111110… |
… | …1101100101101001100111 |
3 | 1120221201120022212120221102 |
4 | 2300201333231211221213 |
5 | 3042224023324113111 |
6 | 41444544143310315 |
7 | 2361305501124110 |
oct | 260417755455147 |
9 | 46851508776842 |
10 | 12131130301031 |
11 | 3957868884915 |
12 | 143b116bab39b |
13 | 69cc647c40a1 |
14 | 2dd215233207 |
15 | 16085a10313b |
hex | b087fb65a67 |
12131130301031 has 4 divisors (see below), whose sum is σ = 13864148915472. Its totient is φ = 10398111686592.
The previous prime is 12131130301007. The next prime is 12131130301049. The reversal of 12131130301031 is 13010303113121.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 12131130301031 - 226 = 12131063192167 is a prime.
It is a super-2 number, since 2×121311303010312 (a number of 27 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12131130300994 and 12131130301012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12131130001031) 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, 866509307210 + ... + 866509307223.
It is an arithmetic number, because the mean of its divisors is an integer number (3466037228868).
Almost surely, 212131130301031 is an apocalyptic number.
12131130301031 is a deficient number, since it is larger than the sum of its proper divisors (1733018614441).
12131130301031 is an equidigital number, since it uses as much as digits as its factorization.
12131130301031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1733018614440.
The product of its (nonzero) digits is 162, while the sum is 20.
Adding to 12131130301031 its reverse (13010303113121), we get a palindrome (25141433414152).
The spelling of 12131130301031 in words is "twelve trillion, one hundred thirty-one billion, one hundred thirty million, three hundred one thousand, thirty-one".
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