Base | Representation |
---|---|
bin | 11011101111110010001110… |
… | …011110010101100011011111 |
3 | 121000002001100021201112011010 |
4 | 123233302032132111203133 |
5 | 111443323442242144411 |
6 | 1111312133515430303 |
7 | 34463306653023063 |
oct | 3357621636254337 |
9 | 530061307645133 |
10 | 122031001131231 |
11 | 35979069884805 |
12 | 1182a513455393 |
13 | 531262159b17a |
14 | 221c490ccbaa3 |
15 | e1948e0b37a6 |
hex | 6efc8e7958df |
122031001131231 has 8 divisors (see below), whose sum is σ = 162710065153584. Its totient is φ = 81352968931520.
The previous prime is 122031001131203. The next prime is 122031001131241. The reversal of 122031001131231 is 132131100130221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 122031001131231 - 25 = 122031001131199 is a prime.
It is a super-2 number, since 2×1220310011312312 (a number of 29 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 122031001131198 and 122031001131207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (122031001131241) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257679660 + ... + 258152801.
It is an arithmetic number, because the mean of its divisors is an integer number (20338758144198).
Almost surely, 2122031001131231 is an apocalyptic number.
122031001131231 is a deficient number, since it is larger than the sum of its proper divisors (40679064022353).
122031001131231 is an equidigital number, since it uses as much as digits as its factorization.
122031001131231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 515911321.
The product of its (nonzero) digits is 216, while the sum is 21.
Adding to 122031001131231 its reverse (132131100130221), we get a palindrome (254162101261452).
The spelling of 122031001131231 in words is "one hundred twenty-two trillion, thirty-one billion, one million, one hundred thirty-one thousand, two hundred thirty-one".
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