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331013121313 = 7193180284531
BaseRepresentation
bin1001101000100011110…
…10110110010100100001
31011122101212120211021211
410310101322312110201
520410403324340223
6412022035550121
732625546051550
oct4642172662441
91148355524254
10331013121313
11118422306376
125419b75b341
13252a3076374
1412041d51d97
15892520bd0d
hex4d11eb6521

331013121313 has 16 divisors (see below), whose sum is σ = 411056803840. Its totient is φ = 260121877200.

The previous prime is 331013121203. The next prime is 331013121331. The reversal of 331013121313 is 313121310133.

It is a cyclic number.

It is not a de Polignac number, because 331013121313 - 213 = 331013113121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331013121353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40138143 + ... + 40146388.

It is an arithmetic number, because the mean of its divisors is an integer number (25691050240).

Almost surely, 2331013121313 is an apocalyptic number.

It is an amenable number.

331013121313 is a deficient number, since it is larger than the sum of its proper divisors (80043682527).

331013121313 is a wasteful number, since it uses less digits than its factorization.

331013121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80284588.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 331013121313 its reverse (313121310133), we get a palindrome (644134431446).

The spelling of 331013121313 in words is "three hundred thirty-one billion, thirteen million, one hundred twenty-one thousand, three hundred thirteen".

Divisors: 1 7 19 31 133 217 589 4123 80284531 561991717 1525406089 2488820461 10677842623 17421743227 47287588759 331013121313