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1313311212311 = 72293857106739
BaseRepresentation
bin10011000111000111011…
…100101100001100010111
311122112212220202002201112
4103013013130230030113
5133004130132243221
62443154333045235
7163612035054500
oct23070734541427
94575786662645
101313311212311
11466a76a39aaa
1219264132681b
1396ac9ac1527
14477c93a5ba7
152426784d15b
hex131c772c317

1313311212311 has 24 divisors (see below), whose sum is σ = 1534746573360. Its totient is φ = 1120533816192.

The previous prime is 1313311212289. The next prime is 1313311212329. The reversal of 1313311212311 is 1132121133131.

It is not a de Polignac number, because 1313311212311 - 226 = 1313244103447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313311212211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12250580 + ... + 12357318.

It is an arithmetic number, because the mean of its divisors is an integer number (63947773890).

Almost surely, 21313311212311 is an apocalyptic number.

1313311212311 is a deficient number, since it is larger than the sum of its proper divisors (221435361049).

1313311212311 is a wasteful number, since it uses less digits than its factorization.

1313311212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107903 (or 107896 counting only the distinct ones).

The product of its digits is 324, while the sum is 23.

Adding to 1313311212311 its reverse (1132121133131), we get a palindrome (2445432345442).

The spelling of 1313311212311 in words is "one trillion, three hundred thirteen billion, three hundred eleven million, two hundred twelve thousand, three hundred eleven".

Divisors: 1 7 49 293 857 2051 5999 14357 41993 106739 251101 747173 1757707 5230211 12303949 31274527 91475323 218921689 640327261 1532451823 4482290827 26802269639 187615887473 1313311212311