2143823217611 has 2 divisors, whose sum is σ = 2143823217612. Its totient is φ = 2143823217610.

The previous prime is 2143823217559. The next prime is 2143823217629. The reversal of 2143823217611 is 1167123283412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143823217611 is a prime.

It is not a weakly prime, because it can be changed into another prime (2143873217611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071911608805 + 1071911608806.

It is an arithmetic number, because the mean of its divisors is an integer number (1071911608806).

Almost surely, 2^{2143823217611} is an apocalyptic number.

2143823217611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143823217611 is an equidigital number, since it uses as much as digits as its factorization.

2143823217611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The spelling of 2143823217611 in words is "two trillion, one hundred forty-three billion, eight hundred twenty-three million, two hundred seventeen thousand, six hundred eleven".