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330120021311 = 1719418824783
BaseRepresentation
bin1001100110111001010…
…11111100010100111111
31011120002122001122101222
410303130223330110333
520402041211140221
6411353253423555
732564452611503
oct4633453742477
91146078048358
10330120021311
111180041670a3
1253b9063abbb
1325190027522
1411d994b0303
1588c1ae49ab
hex4cdcafc53f

330120021311 has 4 divisors (see below), whose sum is σ = 349538846112. Its totient is φ = 310701196512.

The previous prime is 330120021293. The next prime is 330120021389. The reversal of 330120021311 is 113120021033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113120021033 = 739153071747.

It is a cyclic number.

It is not a de Polignac number, because 330120021311 - 222 = 330115827007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 19418824783 = 330120021311 / (3 + 3 + 0 + 1 + 2 + 0 + 0 + 2 + 1 + 3 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 330120021311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330120021391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9709412375 + ... + 9709412408.

It is an arithmetic number, because the mean of its divisors is an integer number (87384711528).

Almost surely, 2330120021311 is an apocalyptic number.

330120021311 is a deficient number, since it is larger than the sum of its proper divisors (19418824801).

330120021311 is a wasteful number, since it uses less digits than its factorization.

330120021311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19418824800.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 330120021311 its reverse (113120021033), we get a palindrome (443240042344).

The spelling of 330120021311 in words is "three hundred thirty billion, one hundred twenty million, twenty-one thousand, three hundred eleven".

Divisors: 1 17 19418824783 330120021311