| Base | Representation |
|---|---|
| bin | 100001011010110… |
| … | …0000000010011000 |
| 3 | 2220010222000101120 |
| 4 | 1002311200002120 |
| 5 | 4244024233422 |
| 6 | 303133445240 |
| 7 | 36534033522 |
| oct | 10265400230 |
| 9 | 2803860346 |
| 10 | 1121321112 |
| 11 | 525a5816a |
| 12 | 273640820 |
| 13 | 14b407522 |
| 14 | a8ccca12 |
| 15 | 6869845c |
| hex | 42d60098 |
1121321112 has 128 divisors (see below), whose sum is σ = 2991651840. Its totient is φ = 349747200.
The previous prime is 1121321111. The next prime is 1121321143. The reversal of 1121321112 is 2111231211.
It is a super-2 number, since 2×11213211122 = 2514722072433833088, which contains 22 as substring.
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 junction number, because it is equal to n+sod(n) for n = 1121321091 and 1121321100.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1121321111) 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, 2796112 + ... + 2796512.
It is an arithmetic number, because the mean of its divisors is an integer number (23372280).
Almost surely, 21121321112 is an apocalyptic number.
1121321112 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 1121321112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495825920).
1121321112 is an abundant number, since it is smaller than the sum of its proper divisors (1870330728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1121321112 is a wasteful number, since it uses less digits than its factorization.
1121321112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 561 (or 557 counting only the distinct ones).
The product of its digits is 24, while the sum is 15.
The square root of 1121321112 is about 33486.1331299988. The cubic root of 1121321112 is about 1038.9069852998.
Adding to 1121321112 its reverse (2111231211), we get a palindrome (3232552323).
The spelling of 1121321112 in words is "one billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred twelve".
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