| Base | Representation |
|---|---|
| bin | 1110011101100… |
| … | …11111100110000 |
| 3 | 22110021212022000 |
| 4 | 13032303330300 |
| 5 | 222024321222 |
| 6 | 20012214000 |
| 7 | 3002142165 |
| oct | 716637460 |
| 9 | 273255260 |
| 10 | 121323312 |
| 11 | 62536000 |
| 12 | 3476a300 |
| 13 | 1c19b356 |
| 14 | 1218206c |
| 15 | a9b79ac |
| hex | 73b3f30 |
121323312 has 160 divisors (see below), whose sum is σ = 384856320. Its totient is φ = 36590400.
The previous prime is 121323311. The next prime is 121323313. The reversal of 121323312 is 213323121.
It is an interprime number because it is at equal distance from previous prime (121323311) and next prime (121323313).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121323311) 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, 574887 + ... + 575097.
It is an arithmetic number, because the mean of its divisors is an integer number (2405352).
Almost surely, 2121323312 is an apocalyptic number.
121323312 is a gapful number since it is divisible by the number (12) 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 121323312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192428160).
121323312 is an abundant number, since it is smaller than the sum of its proper divisors (263533008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121323312 is a wasteful number, since it uses less digits than its factorization.
121323312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 261 (or 227 counting only the distinct ones).
The product of its digits is 216, while the sum is 18.
The square root of 121323312 is about 11014.6861961656. The cubic root of 121323312 is about 495.0488840612.
Adding to 121323312 its reverse (213323121), we get a palindrome (334646433).
The spelling of 121323312 in words is "one hundred twenty-one million, three hundred twenty-three thousand, three hundred twelve".
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