Base | Representation |
---|---|
bin | 11011100010101100000011… |
… | …100111010111100110100111 |
3 | 120212220000100021122210011111 |
4 | 123202230003213113212213 |
5 | 111334102313431113111 |
6 | 1105342453543245451 |
7 | 34341266451466402 |
oct | 3342540347274647 |
9 | 525800307583144 |
10 | 121131023301031 |
11 | 35661418857467 |
12 | 11704006749887 |
13 | 52787b65a4cb3 |
14 | 21caab6836d39 |
15 | e00d689b5a21 |
hex | 6e2b039d79a7 |
121131023301031 has 2 divisors, whose sum is σ = 121131023301032. Its totient is φ = 121131023301030.
The previous prime is 121131023300933. The next prime is 121131023301073. The reversal of 121131023301031 is 130103320131121.
It is a strong prime.
It is an emirp because it is prime and its reverse (130103320131121) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 121131023301031 - 229 = 121130486430119 is a prime.
It is a super-2 number, since 2×1211310233010312 (a number of 29 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 121131023300993 and 121131023301011.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (121131023301091) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565511650515 + 60565511650516.
It is an arithmetic number, because the mean of its divisors is an integer number (60565511650516).
Almost surely, 2121131023301031 is an apocalyptic number.
121131023301031 is a deficient number, since it is larger than the sum of its proper divisors (1).
121131023301031 is an equidigital number, since it uses as much as digits as its factorization.
121131023301031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 22.
Adding to 121131023301031 its reverse (130103320131121), we get a palindrome (251234343432152).
The spelling of 121131023301031 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, twenty-three million, three hundred one thousand, thirty-one".
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