Base | Representation |
---|---|
bin | 1100010101110101100… |
… | …1010101111101010011 |
3 | 202021021001122022120101 |
4 | 3011131121111331103 |
5 | 11433204200302011 |
6 | 241222323153231 |
7 | 21214030000642 |
oct | 3053531257523 |
9 | 667231568511 |
10 | 212020322131 |
11 | 81a0aa43122 |
12 | 35111215817 |
13 | 16cbb74a917 |
14 | a3946ad359 |
15 | 57ad8ab2c1 |
hex | 315d655f53 |
212020322131 has 2 divisors, whose sum is σ = 212020322132. Its totient is φ = 212020322130.
The previous prime is 212020322123. The next prime is 212020322141. The reversal of 212020322131 is 131223020212.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 212020322131 - 23 = 212020322123 is a prime.
It is a super-2 number, since 2×2120203221312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 212020322099 and 212020322108.
It is not a weakly prime, because it can be changed into another prime (212020322141) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010161065 + 106010161066.
It is an arithmetic number, because the mean of its divisors is an integer number (106010161066).
Almost surely, 2212020322131 is an apocalyptic number.
212020322131 is a deficient number, since it is larger than the sum of its proper divisors (1).
212020322131 is an equidigital number, since it uses as much as digits as its factorization.
212020322131 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 212020322131 its reverse (131223020212), we get a palindrome (343243342343).
The spelling of 212020322131 in words is "two hundred twelve billion, twenty million, three hundred twenty-two thousand, one hundred thirty-one".
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