| Base | Representation |
|---|---|
| bin | 1110001100101101111111… |
| … | …00011110110101111000000 |
| 3 | 11002112220212122000200012100 |
| 4 | 13012112333203312233000 |
| 5 | 13043030340231401422 |
| 6 | 150223444510430400 |
| 7 | 6401545152352353 |
| oct | 706267743665700 |
| 9 | 132486778020170 |
| 10 | 31223331122112 |
| 11 | 9a48816478548 |
| 12 | 360335a502400 |
| 13 | 145646958c84c |
| 14 | 79d30835829a |
| 15 | 3922ccdce7ac |
| hex | 1c65bf8f6bc0 |
31223331122112 has 336 divisors, whose sum is σ = 96904994554368. Its totient is φ = 9586780600320.
The previous prime is 31223331122099. The next prime is 31223331122117. The reversal of 31223331122112 is 21122113332213.
31223331122112 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 333 + 112 + 211 + 2 = 666.
It is a super-2 number, since 2×312233311221122 (a number of 28 digits) contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31223331122117) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40060158 + ... + 40832130.
It is an arithmetic number, because the mean of its divisors is an integer number (288407721888).
Almost surely, 231223331122112 is an apocalyptic number.
31223331122112 is a gapful number since it is divisible by the number (32) 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 31223331122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48452497277184).
31223331122112 is an abundant number, since it is smaller than the sum of its proper divisors (65681663432256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31223331122112 is a wasteful number, since it uses less digits than its factorization.
31223331122112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 772128 (or 772115 counting only the distinct ones).
The product of its digits is 2592, while the sum is 27.
Adding to 31223331122112 its reverse (21122113332213), we get a palindrome (52345444454325).
The spelling of 31223331122112 in words is "thirty-one trillion, two hundred twenty-three billion, three hundred thirty-one million, one hundred twenty-two thousand, one hundred twelve".
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