Base | Representation |
---|---|
bin | 110111111011110111… |
… | …0001111111101010011 |
3 | 102111001101101002012001 |
4 | 1233313232033331103 |
5 | 3432001233311311 |
6 | 131103225014431 |
7 | 11451455652406 |
oct | 1576756177523 |
9 | 374041332161 |
10 | 120120213331 |
11 | 46a40802188 |
12 | 1b344024417 |
13 | b434087411 |
14 | 5b572b9d3d |
15 | 31d07ee4c1 |
hex | 1bf7b8ff53 |
120120213331 has 4 divisors (see below), whose sum is σ = 120152155464. Its totient is φ = 120088271200.
The previous prime is 120120213223. The next prime is 120120213349. The reversal of 120120213331 is 133312021021.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 120120213331 - 29 = 120120212819 is a prime.
It is a super-2 number, since 2×1201202133312 (a number of 23 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 = 120120213299 and 120120213308.
It is not an unprimeable number, because it can be changed into a prime (120120213131) 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, 15965425 + ... + 15972946.
It is an arithmetic number, because the mean of its divisors is an integer number (30038038866).
Almost surely, 2120120213331 is an apocalyptic number.
120120213331 is a deficient number, since it is larger than the sum of its proper divisors (31942133).
120120213331 is an equidigital number, since it uses as much as digits as its factorization.
120120213331 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31942132.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 120120213331 its reverse (133312021021), we get a palindrome (253432234352).
The spelling of 120120213331 in words is "one hundred twenty billion, one hundred twenty million, two hundred thirteen thousand, three hundred thirty-one".
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