| Base | Representation |
|---|---|
| bin | 1001100100000101010100… |
| … | …00000101111011101000110 |
| 3 | 2202110112201101211001001100 |
| 4 | 10302002222000233131012 |
| 5 | 10224033003110433220 |
| 6 | 112421302535440530 |
| 7 | 4300304042111625 |
| oct | 462025200573506 |
| 9 | 82415641731040 |
| 10 | 21031012202310 |
| 11 | 67792251245a0 |
| 12 | 2437b4b526146 |
| 13 | b972a6564936 |
| 14 | 529c993156bc |
| 15 | 2670e9017d90 |
| hex | 1320aa02f746 |
21031012202310 has 192 divisors, whose sum is σ = 61010069253120. Its totient is φ = 4982636567040.
The previous prime is 21031012202231. The next prime is 21031012202327. The reversal of 21031012202310 is 1320221013012.
21031012202310 is a `hidden beast` number, since 2 + 1 + 0 + 310 + 122 + 0 + 231 + 0 = 666.
21031012202310 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×210310122023102 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31449106 + ... + 32110874.
It is an arithmetic number, because the mean of its divisors is an integer number (317760777360).
Almost surely, 221031012202310 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 21031012202310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30505034626560).
21031012202310 is an abundant number, since it is smaller than the sum of its proper divisors (39979057050810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21031012202310 is a wasteful number, since it uses less digits than its factorization.
21031012202310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 662523 (or 662520 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 21031012202310 its reverse (1320221013012), we get a palindrome (22351233215322).
The spelling of 21031012202310 in words is "twenty-one trillion, thirty-one billion, twelve million, two hundred two thousand, three hundred ten".
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