Search a number
-
+
12103130989 is a prime number
BaseRepresentation
bin10110100010110011…
…10001111101101101
31011020111011202110201
423101121301331231
5144241400142424
65320552033501
7605632626115
oct132131617555
934214152421
1012103130989
1151509a14a4
122419392891
1311ab633491
1482b5c6045
154ac842d44
hex2d1671f6d

12103130989 has 2 divisors, whose sum is σ = 12103130990. Its totient is φ = 12103130988.

The previous prime is 12103130981. The next prime is 12103131017. The reversal of 12103130989 is 98903130121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10312402500 + 1790728489 = 101550^2 + 42317^2 .

It is an emirp because it is prime and its reverse (98903130121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12103130989 - 23 = 12103130981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103130981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051565494 + 6051565495.

It is an arithmetic number, because the mean of its divisors is an integer number (6051565495).

Almost surely, 212103130989 is an apocalyptic number.

It is an amenable number.

12103130989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103130989 is an equidigital number, since it uses as much as digits as its factorization.

12103130989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 12103130989 in words is "twelve billion, one hundred three million, one hundred thirty thousand, nine hundred eighty-nine".