2142100027 has 2 divisors, whose sum is σ = 2142100028. Its totient is φ = 2142100026.

The previous prime is 2142100019. The next prime is 2142100039. The reversal of 2142100027 is 7200012412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142100027 - 2³ = 2142100019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142099977 and 2142100013.

It is not a weakly prime, because it can be changed into another prime (2142100007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071050013 + 1071050014.

It is an arithmetic number, because the mean of its divisors is an integer number (1071050014).

Almost surely, 2^2142100027 is an apocalyptic number.

2142100027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142100027 is an equidigital number, since it uses as much as digits as its factorization.

2142100027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2142100027 is about 46282.8264802399. The cubic root of 2142100027 is about 1289.0801340394.

Adding to 2142100027 its reverse (7200012412), we get a palindrome (9342112439).

The spelling of 2142100027 in words is "two billion, one hundred forty-two million, one hundred thousand, twenty-seven".