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1312303120013 = 47202871376317
BaseRepresentation
bin10011000110001011010…
…111000111111010001101
311122110021122211201001202
4103012023113013322031
5133000044044320023
62442510322115245
7163545044321054
oct23061327077215
94573248751052
101312303120013
114665a9999376
121923bb7abb25
1396998cacc02
144773154d39b
15242090be128
hex1318b5c7e8d

1312303120013 has 8 divisors (see below), whose sum is σ = 1340291500032. Its totient is φ = 1284317533296.

The previous prime is 1312303119971. The next prime is 1312303120049. The reversal of 1312303120013 is 3100213032131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312303120013 - 224 = 1312286342797 is a prime.

It is a super-3 number, since 3×13123031200133 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312303420013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265331 + ... + 1641647.

It is an arithmetic number, because the mean of its divisors is an integer number (167536437504).

Almost surely, 21312303120013 is an apocalyptic number.

It is an amenable number.

1312303120013 is a deficient number, since it is larger than the sum of its proper divisors (27988380019).

1312303120013 is a wasteful number, since it uses less digits than its factorization.

1312303120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396651.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1312303120013 its reverse (3100213032131), we get a palindrome (4412516152144).

The spelling of 1312303120013 in words is "one trillion, three hundred twelve billion, three hundred three million, one hundred twenty thousand, thirteen".

Divisors: 1 47 20287 953489 1376317 64686899 27921342979 1312303120013