2143992611 has 2 divisors, whose sum is σ = 2143992612. Its totient is φ = 2143992610.

The previous prime is 2143992607. The next prime is 2143992659. The reversal of 2143992611 is 1162993412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2143992611 - 2² = 2143992607 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2143992211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071996305 + 1071996306.

It is an arithmetic number, because the mean of its divisors is an integer number (1071996306).

Almost surely, 2^2143992611 is an apocalyptic number.

2143992611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143992611 is an equidigital number, since it uses as much as digits as its factorization.

2143992611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 2143992611 is about 46303.2678220447. The cubic root of 2143992611 is about 1289.4596641351.

The spelling of 2143992611 in words is "two billion, one hundred forty-three million, nine hundred ninety-two thousand, six hundred eleven".