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3125013113 is a prime number
BaseRepresentation
bin1011101001000011…
…1110101001111001
322001210021010002102
42322100332221321
522400000404423
61234031513145
7140304113255
oct27220765171
98053233072
103125013113
111363a96672
127326887b5
133aa5751b1
14219069265
15134539c28
hexba43ea79

3125013113 has 2 divisors, whose sum is σ = 3125013114. Its totient is φ = 3125013112.

The previous prime is 3125013109. The next prime is 3125013119. The reversal of 3125013113 is 3113105213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2799679744 + 325333369 = 52912^2 + 18037^2 .

It is an emirp because it is prime and its reverse (3113105213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3125013113 - 22 = 3125013109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3125013119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562506556 + 1562506557.

It is an arithmetic number, because the mean of its divisors is an integer number (1562506557).

Almost surely, 23125013113 is an apocalyptic number.

It is an amenable number.

3125013113 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125013113 is an equidigital number, since it uses as much as digits as its factorization.

3125013113 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 20.

The square root of 3125013113 is about 55901.8167236093. The cubic root of 3125013113 is about 1462.0109140446.

Adding to 3125013113 its reverse (3113105213), we get a palindrome (6238118326).

The spelling of 3125013113 in words is "three billion, one hundred twenty-five million, thirteen thousand, one hundred thirteen".