3999043211 has 2 divisors, whose sum is σ = 3999043212. Its totient is φ = 3999043210.

The previous prime is 3999043159. The next prime is 3999043231. The reversal of 3999043211 is 1123409993.

It is a strong prime.

It is an emirp because it is prime and its reverse (1123409993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3999043211 - 2³⁰ = 2925301387 is a prime.

It is not a weakly prime, because it can be changed into another prime (3999043231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999521605 + 1999521606.

It is an arithmetic number, because the mean of its divisors is an integer number (1999521606).

Almost surely, 2^3999043211 is an apocalyptic number.

3999043211 is a deficient number, since it is larger than the sum of its proper divisors (1).

3999043211 is an equidigital number, since it uses as much as digits as its factorization.

3999043211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 3999043211 is about 63237.9886697861. The cubic root of 3999043211 is about 1587.2744745532.

The spelling of 3999043211 in words is "three billion, nine hundred ninety-nine million, forty-three thousand, two hundred eleven".