2138107211 has 2 divisors, whose sum is σ = 2138107212. Its totient is φ = 2138107210.

The previous prime is 2138107159. The next prime is 2138107217. The reversal of 2138107211 is 1127018312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2138107211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2138107217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069053605 + 1069053606.

It is an arithmetic number, because the mean of its divisors is an integer number (1069053606).

Almost surely, 2^2138107211 is an apocalyptic number.

2138107211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138107211 is an equidigital number, since it uses as much as digits as its factorization.

2138107211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 2138107211 is about 46239.6713980539. The cubic root of 2138107211 is about 1288.2786991502.

The spelling of 2138107211 in words is "two billion, one hundred thirty-eight million, one hundred seven thousand, two hundred eleven".