Base | Representation |
---|---|
bin | 11011100111000010100110… |
… | …101101000000110100110111 |
3 | 120220221121100022012121021220 |
4 | 123213002212231000310313 |
5 | 111404002332211211411 |
6 | 1110132120132441423 |
7 | 34402015244331456 |
oct | 3347024655006467 |
9 | 526847308177256 |
10 | 121430112210231 |
11 | 35767248736760 |
12 | 11751b76a79273 |
13 | 529aa6c726006 |
14 | 21db36a972b9d |
15 | e08a211a6b06 |
hex | 6e70a6b40d37 |
121430112210231 has 32 divisors (see below), whose sum is σ = 184335478161408. Its totient is φ = 70382624099040.
The previous prime is 121430112210193. The next prime is 121430112210247. The reversal of 121430112210231 is 132012211034121.
121430112210231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 121430112210231 - 214 = 121430112193847 is a prime.
It is a super-2 number, since 2×1214301122102312 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121430112210271) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8638951 + ... + 17818296.
It is an arithmetic number, because the mean of its divisors is an integer number (5760483692544).
Almost surely, 2121430112210231 is an apocalyptic number.
121430112210231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
121430112210231 is a deficient number, since it is larger than the sum of its proper divisors (62905365951177).
121430112210231 is a wasteful number, since it uses less digits than its factorization.
121430112210231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26463331.
The product of its (nonzero) digits is 576, while the sum is 24.
Adding to 121430112210231 its reverse (132012211034121), we get a palindrome (253442323244352).
The spelling of 121430112210231 in words is "one hundred twenty-one trillion, four hundred thirty billion, one hundred twelve million, two hundred ten thousand, two hundred thirty-one".
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