| Base | Representation |
|---|---|
| bin | 10000001010111001010… |
| … | …010001101001101010100 |
| 3 | 10221020020010212212110010 |
| 4 | 100022321102031031110 |
| 5 | 121201224242320040 |
| 6 | 2210252145200220 |
| 7 | 143165552114130 |
| oct | 20127122151524 |
| 9 | 3836203785403 |
| 10 | 1111210120020 |
| 11 | 3992971640a0 |
| 12 | 15b43a030070 |
| 13 | 80a2c3c12a0 |
| 14 | 3bad62323c0 |
| 15 | 1dd89be7e80 |
| hex | 102b948d354 |
1111210120020 has 384 divisors, whose sum is σ = 4180542492672. Its totient is φ = 212985446400.
The previous prime is 1111210120019. The next prime is 1111210120067. The reversal of 1111210120020 is 200210121111.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 1111210119978 and 1111210120005.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 94348372 + ... + 94360148.
It is an arithmetic number, because the mean of its divisors is an integer number (10886829408).
Almost surely, 21111210120020 is an apocalyptic number.
1111210120020 is a gapful number since it is divisible by the number (10) 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 1111210120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090271246336).
1111210120020 is an abundant number, since it is smaller than the sum of its proper divisors (3069332372652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1111210120020 is a wasteful number, since it uses less digits than its factorization.
1111210120020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13391 (or 13389 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 1111210120020 its reverse (200210121111), we get a palindrome (1311420241131).
It can be divided in two parts, 11112101 and 20020, that added together give a triangular number (11132121 = T4718).
The spelling of 1111210120020 in words is "one trillion, one hundred eleven billion, two hundred ten million, one hundred twenty thousand, twenty".
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