999843054311 has 2 divisors, whose sum is σ = 999843054312. Its totient is φ = 999843054310.

The previous prime is 999843054307. The next prime is 999843054341. The reversal of 999843054311 is 113450348999.

999843054311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999843054311 - 2² = 999843054307 is a prime.

It is a super-2 number, since 2×999843054311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999843054341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499921527155 + 499921527156.

It is an arithmetic number, because the mean of its divisors is an integer number (499921527156).

Almost surely, 2^999843054311 is an apocalyptic number.

999843054311 is the 447179-th centered decagonal number.

999843054311 is a deficient number, since it is larger than the sum of its proper divisors (1).

999843054311 is an equidigital number, since it uses as much as digits as its factorization.

999843054311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 56.

The spelling of 999843054311 in words is "nine hundred ninety-nine billion, eight hundred forty-three million, fifty-four thousand, three hundred eleven".