Base | Representation |
---|---|
bin | 11011100010011001011010… |
… | …010100011110100101110111 |
3 | 120212211002200001011201210002 |
4 | 123202121122110132211313 |
5 | 111333240313300131411 |
6 | 1105325343213421515 |
7 | 34336660363032452 |
oct | 3342313224364567 |
9 | 525732601151702 |
10 | 121111003130231 |
11 | 35653984a00864 |
12 | 11700159a9a89b |
13 | 527694598729a |
14 | 21c9b379c0499 |
15 | e005960b333b |
hex | 6e265a51e977 |
121111003130231 has 8 divisors (see below), whose sum is σ = 124207284241920. Its totient is φ = 118027437752952.
The previous prime is 121111003130207. The next prime is 121111003130261. The reversal of 121111003130231 is 132031300111121.
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-121111003130231 is a prime.
It is a super-2 number, since 2×1211110031302312 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121111003130261) 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, 3178914311 + ... + 3178952408.
It is an arithmetic number, because the mean of its divisors is an integer number (15525910530240).
Almost surely, 2121111003130231 is an apocalyptic number.
121111003130231 is a deficient number, since it is larger than the sum of its proper divisors (3096281111689).
121111003130231 is an equidigital number, since it uses as much as digits as its factorization.
121111003130231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6357867205.
The product of its (nonzero) digits is 108, while the sum is 20.
Adding to 121111003130231 its reverse (132031300111121), we get a palindrome (253142303241352).
The spelling of 121111003130231 in words is "one hundred twenty-one trillion, one hundred eleven billion, three million, one hundred thirty thousand, two hundred thirty-one".
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