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212130112331 = 7115119786411
BaseRepresentation
bin1100010110001111110…
…0001010001101001011
3202021112201020020102002
43011203330022031023
511433420302043311
6241241244301215
721216532126664
oct3054374121513
9667481206362
10212130112331
1181a66a11125
1235141b4180b
131700840b637
14a3a50cc36b
1557b834693b
hex3163f0a34b

212130112331 has 8 divisors (see below), whose sum is σ = 216542492928. Its totient is φ = 207757305000.

The previous prime is 212130112301. The next prime is 212130112343. The reversal of 212130112331 is 133211031212.

It is a happy number.

212130112331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212130112331 - 230 = 211056370507 is a prime.

It is a super-2 number, since 2×2121301123312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212130112301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9882485 + ... + 9903926.

It is an arithmetic number, because the mean of its divisors is an integer number (27067811616).

Almost surely, 2212130112331 is an apocalyptic number.

212130112331 is a deficient number, since it is larger than the sum of its proper divisors (4412380597).

212130112331 is a wasteful number, since it uses less digits than its factorization.

212130112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19786633.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212130112331 its reverse (133211031212), we get a palindrome (345341143543).

The spelling of 212130112331 in words is "two hundred twelve billion, one hundred thirty million, one hundred twelve thousand, three hundred thirty-one".

Divisors: 1 71 151 10721 19786411 1404835181 2987748061 212130112331