Search a number
-
+
12110002981 is a prime number
BaseRepresentation
bin10110100011100111…
…11111101100100101
31011020222002220001221
423101303333230211
5144300130043411
65321355220341
7606045220066
oct132163775445
934228086057
1012110002981
11515486552a
12241b7476b1
1311acb9b34b
1482c49456d
154ad24e071
hex2d1cffb25

12110002981 has 2 divisors, whose sum is σ = 12110002982. Its totient is φ = 12110002980.

The previous prime is 12110002937. The next prime is 12110003027. The reversal of 12110002981 is 18920001121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7834020100 + 4275982881 = 88510^2 + 65391^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110002981 - 211 = 12110000933 is a prime.

It is a super-2 number, since 2×121100029812 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110003981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055001490 + 6055001491.

It is an arithmetic number, because the mean of its divisors is an integer number (6055001491).

Almost surely, 212110002981 is an apocalyptic number.

It is an amenable number.

12110002981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110002981 is an equidigital number, since it uses as much as digits as its factorization.

12110002981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 12110002981 in words is "twelve billion, one hundred ten million, two thousand, nine hundred eighty-one".