| Base | Representation |
|---|---|
| bin | 1011001100100110000110… |
| … | …0000001100101110011100 |
| 3 | 1121120220212121012211020220 |
| 4 | 2303021201200030232130 |
| 5 | 3103200423044213040 |
| 6 | 42103333442441340 |
| 7 | 2410304233160553 |
| oct | 263114140145634 |
| 9 | 47526777184226 |
| 10 | 12311012101020 |
| 11 | 3a17086424636 |
| 12 | 1469b59063250 |
| 13 | 6b3c00ac1aa9 |
| 14 | 307bdb460d9a |
| 15 | 16538725e2d0 |
| hex | b326180cb9c |
12311012101020 has 96 divisors (see below), whose sum is σ = 34856608082688. Its totient is φ = 3246308362752.
The previous prime is 12311012100967. The next prime is 12311012101027. The reversal of 12311012101020 is 2010121011321.
It is a super-2 number, since 2×123110121010202 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12311012101027) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1758904 + ... + 5264576.
It is an arithmetic number, because the mean of its divisors is an integer number (363089667528).
Almost surely, 212311012101020 is an apocalyptic number.
12311012101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12311012101020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17428304041344).
12311012101020 is an abundant number, since it is smaller than the sum of its proper divisors (22545595981668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12311012101020 is a wasteful number, since it uses less digits than its factorization.
12311012101020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3506339 (or 3506337 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 15.
Adding to 12311012101020 its reverse (2010121011321), we get a palindrome (14321133112341).
The spelling of 12311012101020 in words is "twelve trillion, three hundred eleven billion, twelve million, one hundred one thousand, twenty".
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