2143128227 has 2 divisors, whose sum is σ = 2143128228. Its totient is φ = 2143128226.

The previous prime is 2143128209. The next prime is 2143128241. The reversal of 2143128227 is 7228213412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143128227 - 2¹² = 2143124131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143128193 and 2143128202.

It is not a weakly prime, because it can be changed into another prime (2143128257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071564113 + 1071564114.

It is an arithmetic number, because the mean of its divisors is an integer number (1071564114).

Almost surely, 2^2143128227 is an apocalyptic number.

2143128227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143128227 is an equidigital number, since it uses as much as digits as its factorization.

2143128227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

The square root of 2143128227 is about 46293.9329394252. The cubic root of 2143128227 is about 1289.2863522623.

The spelling of 2143128227 in words is "two billion, one hundred forty-three million, one hundred twenty-eight thousand, two hundred twenty-seven".