Search a number
-
+
12101210893 is a prime number
BaseRepresentation
bin10110100010100100…
…11101001100001101
31011020100120012121001
423101102131030031
5144240402222033
65320442540301
7605610411142
oct132122351415
934210505531
1012101210893
11514a8aa942
122418807691
1311ab110525
1482b2463c9
154ac5b3e7d
hex2d149d30d

12101210893 has 2 divisors, whose sum is σ = 12101210894. Its totient is φ = 12101210892.

The previous prime is 12101210881. The next prime is 12101210897. The reversal of 12101210893 is 39801210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6563916324 + 5537294569 = 81018^2 + 74413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12101210893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101210897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050605446 + 6050605447.

It is an arithmetic number, because the mean of its divisors is an integer number (6050605447).

Almost surely, 212101210893 is an apocalyptic number.

It is an amenable number.

12101210893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101210893 is an equidigital number, since it uses as much as digits as its factorization.

12101210893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 12101210893 in words is "twelve billion, one hundred one million, two hundred ten thousand, eight hundred ninety-three".