Base | Representation |
---|---|
bin | 11101110101100000010110… |
… | …101010010000010100001111 |
3 | 122012121112022211002210011011 |
4 | 131311200112222100110033 |
5 | 114144403003034044043 |
6 | 1143025423132510051 |
7 | 36432230255123215 |
oct | 3565402652202417 |
9 | 565545284083134 |
10 | 131220221003023 |
11 | 388a1201941169 |
12 | 1287343661b327 |
13 | 582b024276929 |
14 | 245914209acb5 |
15 | 102851460759d |
hex | 775816a9050f |
131220221003023 has 8 divisors (see below), whose sum is σ = 134224521200640. Its totient is φ = 128224769997240.
The previous prime is 131220221002993. The next prime is 131220221003033. The reversal of 131220221003023 is 320300122022131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131220221003023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131220221002985 and 131220221003003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131220221003033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2212267963 + ... + 2212327276.
It is an arithmetic number, because the mean of its divisors is an integer number (16778065150080).
Almost surely, 2131220221003023 is an apocalyptic number.
131220221003023 is a deficient number, since it is larger than the sum of its proper divisors (3004300197617).
131220221003023 is an equidigital number, since it uses as much as digits as its factorization.
131220221003023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4424595917.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 131220221003023 its reverse (320300122022131), we get a palindrome (451520343025154).
The spelling of 131220221003023 in words is "one hundred thirty-one trillion, two hundred twenty billion, two hundred twenty-one million, three thousand, twenty-three".
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