Base | Representation |
---|---|
bin | 11011101111100000101001… |
… | …001000011101110110001111 |
3 | 121000000020121111111000020201 |
4 | 123233200221020131312033 |
5 | 111443021310440430111 |
6 | 1111255332233354331 |
7 | 34462041046560211 |
oct | 3357405110356617 |
9 | 530006544430221 |
10 | 122012121030031 |
11 | 35971060521291 |
12 | 118269245689a7 |
13 | 5310902c2055b |
14 | 221b5bd6445b1 |
15 | e18c3680e6c1 |
hex | 6ef82921dd8f |
122012121030031 has 4 divisors (see below), whose sum is σ = 122012326295392. Its totient is φ = 122011915764672.
The previous prime is 122012121029969. The next prime is 122012121030053. The reversal of 122012121030031 is 130030121210221.
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 122012121030031 - 235 = 121977761291663 is a prime.
It is a super-2 number, since 2×1220121210300312 (a number of 29 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 = 122012121029990 and 122012121030008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122012121070031) 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, 101738466 + ... + 102930751.
It is an arithmetic number, because the mean of its divisors is an integer number (30503081573848).
Almost surely, 2122012121030031 is an apocalyptic number.
122012121030031 is a deficient number, since it is larger than the sum of its proper divisors (205265361).
122012121030031 is an equidigital number, since it uses as much as digits as its factorization.
122012121030031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 205265360.
The product of its (nonzero) digits is 144, while the sum is 19.
Adding to 122012121030031 its reverse (130030121210221), we get a palindrome (252042242240252).
The spelling of 122012121030031 in words is "one hundred twenty-two trillion, twelve billion, one hundred twenty-one million, thirty thousand, thirty-one".
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