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1315230013 is a prime number
BaseRepresentation
bin100111001100100…
…1101000100111101
310101122211121101201
41032121031010331
510143144330023
6334301535501
744410161556
oct11631150475
93348747351
101315230013
1161545a859
12308574591
1317c63b216
14c696732d
157a6ecbad
hex4e64d13d

1315230013 has 2 divisors, whose sum is σ = 1315230014. Its totient is φ = 1315230012.

The previous prime is 1315230001. The next prime is 1315230019. The reversal of 1315230013 is 3100325131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1128825604 + 186404409 = 33598^2 + 13653^2 .

It is an emirp because it is prime and its reverse (3100325131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1315230013 - 225 = 1281675581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315230019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657615006 + 657615007.

It is an arithmetic number, because the mean of its divisors is an integer number (657615007).

Almost surely, 21315230013 is an apocalyptic number.

It is an amenable number.

1315230013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315230013 is an equidigital number, since it uses as much as digits as its factorization.

1315230013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1315230013 is about 36266.1000522527. The cubic root of 1315230013 is about 1095.6383795192.

Adding to 1315230013 its reverse (3100325131), we get a palindrome (4415555144).

The spelling of 1315230013 in words is "one billion, three hundred fifteen million, two hundred thirty thousand, thirteen".