Search a number
-
+
13212120107 is a prime number
BaseRepresentation
bin11000100111000000…
…01111010000101011
31021002202221020112202
430103200033100223
5204024300320412
610023005330415
7645260111414
oct142340172053
937082836482
1013212120107
11566a99642a
122688866a0b
131327310864
148d49c480b
15524da23c2
hex31380f42b

13212120107 has 2 divisors, whose sum is σ = 13212120108. Its totient is φ = 13212120106.

The previous prime is 13212120059. The next prime is 13212120109. The reversal of 13212120107 is 70102121231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13212120107 - 210 = 13212119083 is a prime.

Together with 13212120109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13212120109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606060053 + 6606060054.

It is an arithmetic number, because the mean of its divisors is an integer number (6606060054).

Almost surely, 213212120107 is an apocalyptic number.

13212120107 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212120107 is an equidigital number, since it uses as much as digits as its factorization.

13212120107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 13212120107 its reverse (70102121231), we get a palindrome (83314241338).

The spelling of 13212120107 in words is "thirteen billion, two hundred twelve million, one hundred twenty thousand, one hundred seven".