Base | Representation |
---|---|
bin | 111000110111110000… |
… | …1110010000011010111 |
3 | 102200020110112112200022 |
4 | 1301233201302003113 |
5 | 4000110313223111 |
6 | 132034510135355 |
7 | 11552333444123 |
oct | 1615741620327 |
9 | 380213475608 |
10 | 122130211031 |
11 | 47882358204 |
12 | 1b8051b155b |
13 | b69462227a |
14 | 5ca8218583 |
15 | 329bed92db |
hex | 1c6f8720d7 |
122130211031 has 2 divisors, whose sum is σ = 122130211032. Its totient is φ = 122130211030.
The previous prime is 122130210989. The next prime is 122130211033. The reversal of 122130211031 is 130112031221.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 122130211031 - 226 = 122063102167 is a prime.
It is a super-2 number, since 2×1221302110312 (a number of 23 digits) contains 22 as substring.
Together with 122130211033, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (122130211033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61065105515 + 61065105516.
It is an arithmetic number, because the mean of its divisors is an integer number (61065105516).
Almost surely, 2122130211031 is an apocalyptic number.
122130211031 is a deficient number, since it is larger than the sum of its proper divisors (1).
122130211031 is an equidigital number, since it uses as much as digits as its factorization.
122130211031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 122130211031 its reverse (130112031221), we get a palindrome (252242242252).
The spelling of 122130211031 in words is "one hundred twenty-two billion, one hundred thirty million, two hundred eleven thousand, thirty-one".
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