Base | Representation |
---|---|
bin | 1100010101110001011… |
… | …1110001011011001011 |
3 | 202021012212022000200202 |
4 | 3011130113301123023 |
5 | 11433140300230011 |
6 | 241220510522415 |
7 | 21213430620146 |
oct | 3053427613313 |
9 | 667185260622 |
10 | 212003133131 |
11 | 81a01272839 |
12 | 3510750640b |
13 | 16cb800cb0a |
14 | a3922b705d |
15 | 57ac11323b |
hex | 315c5f16cb |
212003133131 has 2 divisors, whose sum is σ = 212003133132. Its totient is φ = 212003133130.
The previous prime is 212003133107. The next prime is 212003133149. The reversal of 212003133131 is 131331300212.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 212003133131 - 218 = 212002870987 is a prime.
It is a super-2 number, since 2×2120031331312 (a number of 23 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (212003133101) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001566565 + 106001566566.
It is an arithmetic number, because the mean of its divisors is an integer number (106001566566).
Almost surely, 2212003133131 is an apocalyptic number.
212003133131 is a deficient number, since it is larger than the sum of its proper divisors (1).
212003133131 is an equidigital number, since it uses as much as digits as its factorization.
212003133131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 212003133131 its reverse (131331300212), we get a palindrome (343334433343).
The spelling of 212003133131 in words is "two hundred twelve billion, three million, one hundred thirty-three thousand, one hundred thirty-one".
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