2143212107 has 2 divisors, whose sum is σ = 2143212108. Its totient is φ = 2143212106.

The previous prime is 2143212089. The next prime is 2143212119. The reversal of 2143212107 is 7012123412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143212107 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (2143212307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071606053 + 1071606054.

It is an arithmetic number, because the mean of its divisors is an integer number (1071606054).

Almost surely, 2^2143212107 is an apocalyptic number.

2143212107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143212107 is an equidigital number, since it uses as much as digits as its factorization.

2143212107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2143212107 is about 46294.8388808083. The cubic root of 2143212107 is about 1289.3031725233.

Adding to 2143212107 its reverse (7012123412), we get a palindrome (9155335519).

The spelling of 2143212107 in words is "two billion, one hundred forty-three million, two hundred twelve thousand, one hundred seven".