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1311101313 = 31356732213
BaseRepresentation
bin100111000100101…
…1101000110000001
310101101001211212220
41032021131012001
510141120220223
6334033241253
744330114544
oct11611350601
93341054786
101311101313
1161309a905
12307103229
1317b823bc2
14c61b085b
157a1846e3
hex4e25d181

1311101313 has 8 divisors (see below), whose sum is σ = 1748318208. Its totient is φ = 873975984.

The previous prime is 1311101299. The next prime is 1311101329. The reversal of 1311101313 is 3131011131.

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

It is not a de Polignac number, because 1311101313 - 221 = 1309004161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311101292 and 1311101301.

It is not an unprimeable number, because it can be changed into a prime (1311101713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24595 + ... + 56807.

It is an arithmetic number, because the mean of its divisors is an integer number (218539776).

Almost surely, 21311101313 is an apocalyptic number.

It is an amenable number.

1311101313 is a deficient number, since it is larger than the sum of its proper divisors (437216895).

1311101313 is a wasteful number, since it uses less digits than its factorization.

1311101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45783.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1311101313 is about 36209.1330053621. The cubic root of 1311101313 is about 1094.4907212439.

Adding to 1311101313 its reverse (3131011131), we get a palindrome (4442112444).

The spelling of 1311101313 in words is "one billion, three hundred eleven million, one hundred one thousand, three hundred thirteen".

Divisors: 1 3 13567 32213 40701 96639 437033771 1311101313