| Base | Representation |
|---|---|
| bin | 1110001111100010011110… |
| … | …01101010110001010001100 |
| 3 | 11002220011222201011002100000 |
| 4 | 13013301033031112022030 |
| 5 | 13101122312441434012 |
| 6 | 150340152031004300 |
| 7 | 6411545335663332 |
| oct | 707611715261214 |
| 9 | 132804881132300 |
| 10 | 31320230421132 |
| 11 | 9a85920613054 |
| 12 | 361a0a1969690 |
| 13 | 146263c88a183 |
| 14 | 7a3c9b67bb52 |
| 15 | 394a9ecd2ddc |
| hex | 1c7c4f35628c |
31320230421132 has 288 divisors, whose sum is σ = 84656042714880. Its totient is φ = 10118861521920.
The previous prime is 31320230421127. The next prime is 31320230421143. The reversal of 31320230421132 is 23112403202313.
31320230421132 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 0 + 230 + 421 + 1 + 3 + 2 = 666.
It is a super-2 number, since 2×313202304211322 (a number of 28 digits) contains 22 as substring.
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 = 31320230421096 and 31320230421105.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14217080343 + ... + 14217082545.
It is an arithmetic number, because the mean of its divisors is an integer number (293944592760).
Almost surely, 231320230421132 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 31320230421132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42328021357440).
31320230421132 is an abundant number, since it is smaller than the sum of its proper divisors (53335812293748).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31320230421132 is a wasteful number, since it uses less digits than its factorization.
31320230421132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4435 (or 4421 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
Adding to 31320230421132 its reverse (23112403202313), we get a palindrome (54432633623445).
The spelling of 31320230421132 in words is "thirty-one trillion, three hundred twenty billion, two hundred thirty million, four hundred twenty-one thousand, one hundred thirty-two".
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