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1313230323131 = 4793327397207
BaseRepresentation
bin10011000111000010101…
…000000111110110111011
311122112200021112111121222
4103013002220013312323
5133003443430320011
62443142323222255
7163610033366126
oct23070250076673
94575607474558
101313230323131
11466a35310841
1219261a21798b
1396ab610c4cc
14477bc74b3bd
15242606c0ddb
hex131c2a07dbb

1313230323131 has 4 divisors (see below), whose sum is σ = 1313257768272. Its totient is φ = 1313202877992.

The previous prime is 1313230323109. The next prime is 1313230323161.

1313230323131 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313230323131 - 234 = 1296050453947 is a prime.

It is a super-2 number, since 2×13132303231312 (a number of 25 digits) contains 22 as substring.

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 1313230323131.

It is not an unprimeable number, because it can be changed into a prime (1313230323101) 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, 13650671 + ... + 13746536.

It is an arithmetic number, because the mean of its divisors is an integer number (328314442068).

Almost surely, 21313230323131 is an apocalyptic number.

1313230323131 is a deficient number, since it is larger than the sum of its proper divisors (27445141).

1313230323131 is an equidigital number, since it uses as much as digits as its factorization.

1313230323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27445140.

The product of its (nonzero) digits is 2916, while the sum is 26.

It can be divided in two parts, 1313230 and 323131, that added together give a palindrome (1636361).

The spelling of 1313230323131 in words is "one trillion, three hundred thirteen billion, two hundred thirty million, three hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 47933 27397207 1313230323131