Base | Representation |
---|---|
bin | 110111111011010010… |
… | …1110000100000010011 |
3 | 102111000001121121200211 |
4 | 1233312211300200103 |
5 | 3431431402211011 |
6 | 131101305424551 |
7 | 11451135304450 |
oct | 1576645604023 |
9 | 374001547624 |
10 | 120101210131 |
11 | 46a31002861 |
12 | 1b33979b157 |
13 | b430162916 |
14 | 5b54970827 |
15 | 31cdce8b21 |
hex | 1bf6970813 |
120101210131 has 16 divisors (see below), whose sum is σ = 142705152000. Its totient is φ = 98894603808.
The previous prime is 120101210123. The next prime is 120101210149. The reversal of 120101210131 is 131012101021.
It is a happy number.
It is not a de Polignac number, because 120101210131 - 23 = 120101210123 is a prime.
It is a super-2 number, since 2×1201012101312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120101210171) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1446115 + ... + 1526908.
It is an arithmetic number, because the mean of its divisors is an integer number (8919072000).
Almost surely, 2120101210131 is an apocalyptic number.
120101210131 is a deficient number, since it is larger than the sum of its proper divisors (22603941869).
120101210131 is a wasteful number, since it uses less digits than its factorization.
120101210131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2973258.
The product of its (nonzero) digits is 12, while the sum is 13.
Adding to 120101210131 its reverse (131012101021), we get a palindrome (251113311152).
The spelling of 120101210131 in words is "one hundred twenty billion, one hundred one million, two hundred ten thousand, one hundred thirty-one".
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