| Base | Representation |
|---|---|
| bin | 10001101001111001101… |
| … | …111010101101101111100 |
| 3 | 11021222112121112210220000 |
| 4 | 101221321233111231330 |
| 5 | 124334140121332312 |
| 6 | 2325202544154300 |
| 7 | 153436542206661 |
| oct | 21517157255574 |
| 9 | 4258477483800 |
| 10 | 1213223230332 |
| 11 | 428585980823 |
| 12 | 17716a008990 |
| 13 | 8a538cb8559 |
| 14 | 42a127a1a68 |
| 15 | 2185aa34adc |
| hex | 11a79bd5b7c |
1213223230332 has 240 divisors, whose sum is σ = 3459178763040. Its totient is φ = 369461772288.
The previous prime is 1213223230217. The next prime is 1213223230333. The reversal of 1213223230332 is 2330323223121.
1213223230332 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 2 + 2 + 323 + 0 + 332 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 1213223230296 and 1213223230305.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213223230333) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25714668 + ... + 25761804.
It is an arithmetic number, because the mean of its divisors is an integer number (14413244846).
Almost surely, 21213223230332 is an apocalyptic number.
1213223230332 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 1213223230332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729589381520).
1213223230332 is an abundant number, since it is smaller than the sum of its proper divisors (2245955532708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1213223230332 is a wasteful number, since it uses less digits than its factorization.
1213223230332 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47322 (or 47311 counting only the distinct ones).
The product of its (nonzero) digits is 7776, while the sum is 27.
Adding to 1213223230332 its reverse (2330323223121), we get a palindrome (3543546453453).
The spelling of 1213223230332 in words is "one trillion, two hundred thirteen billion, two hundred twenty-three million, two hundred thirty thousand, three hundred thirty-two".
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