Base | Representation |
---|---|
bin | 1011000111111100011100… |
… | …0110101100100011000111 |
3 | 1121022021122020200001021220 |
4 | 2301333013012230203013 |
5 | 3100343304223004111 |
6 | 42002521225011423 |
7 | 2401445236163343 |
oct | 261770706544307 |
9 | 47267566601256 |
10 | 12231112313031 |
11 | 39962050442a7 |
12 | 145657a923b73 |
13 | 6a9509676131 |
14 | 303dbbb30623 |
15 | 16325c987e06 |
hex | b1fc71ac8c7 |
12231112313031 has 16 divisors (see below), whose sum is σ = 16393815072768. Its totient is φ = 8111243685600.
The previous prime is 12231112313029. The next prime is 12231112313051. The reversal of 12231112313031 is 13031321113221.
It is not a de Polignac number, because 12231112313031 - 21 = 12231112313029 is a prime.
It is a super-2 number, since 2×122311123130312 (a number of 27 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12231112312992 and 12231112313010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12231112313051) 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, 41263605 + ... + 41558961.
It is an arithmetic number, because the mean of its divisors is an integer number (1024613442048).
Almost surely, 212231112313031 is an apocalyptic number.
12231112313031 is a deficient number, since it is larger than the sum of its proper divisors (4162702759737).
12231112313031 is a wasteful number, since it uses less digits than its factorization.
12231112313031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 367822.
The product of its (nonzero) digits is 648, while the sum is 24.
Adding to 12231112313031 its reverse (13031321113221), we get a palindrome (25262433426252).
The spelling of 12231112313031 in words is "twelve trillion, two hundred thirty-one billion, one hundred twelve million, three hundred thirteen thousand, thirty-one".
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