| Base | Representation |
|---|---|
| bin | 11011100101010010110001… |
| … | …010100000000011010011110 |
| 3 | 120220112010101122110011221200 |
| 4 | 123211102301110000122132 |
| 5 | 111400020420431320110 |
| 6 | 1110001020422140330 |
| 7 | 34360234442032464 |
| oct | 3345226124003236 |
| 9 | 526463348404850 |
| 10 | 121310031120030 |
| 11 | 35720328026345 |
| 12 | 11732843b816a6 |
| 13 | 528c6437b929c |
| 14 | 21d561895c834 |
| 15 | e058440346c0 |
| hex | 6e54b150069e |
121310031120030 has 192 divisors, whose sum is σ = 326645612145216. Its totient is φ = 31214557440000.
The previous prime is 121310031119999. The next prime is 121310031120181. The reversal of 121310031120030 is 30021130013121.
121310031120030 is a `hidden beast` number, since 1 + 21 + 3 + 100 + 311 + 200 + 30 = 666.
It is a super-2 number, since 2×1213100311200302 (a number of 29 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 121310031119985 and 121310031120012.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 350528337 + ... + 350874243.
It is an arithmetic number, because the mean of its divisors is an integer number (1701279229923).
Almost surely, 2121310031120030 is an apocalyptic number.
121310031120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 121310031120030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163322806072608).
121310031120030 is an abundant number, since it is smaller than the sum of its proper divisors (205335581025186).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121310031120030 is a wasteful number, since it uses less digits than its factorization.
121310031120030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 347003 (or 347000 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 121310031120030 its reverse (30021130013121), we get a palindrome (151331161133151).
The spelling of 121310031120030 in words is "one hundred twenty-one trillion, three hundred ten billion, thirty-one million, one hundred twenty thousand, thirty".
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