211244423311434 has 16 divisors (see below), whose sum is σ = 422558232284160. Its totient is φ = 70403243493600.

The previous prime is 211244423311403. The next prime is 211244423311483. The reversal of 211244423311434 is 434113324442112.

It is a junction number, because it is equal to n+sod(n) for n = 211244423311392 and 211244423311401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2891029642 + ... + 2891102709.

It is an arithmetic number, because the mean of its divisors is an integer number (26409889517760).

Almost surely, 2^{211244423311434} is an apocalyptic number.

211244423311434 is an abundant number, since it is smaller than the sum of its proper divisors (211313808972726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211244423311434 is a wasteful number, since it uses less digits than its factorization.

211244423311434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782138445.

The product of its digits is 221184, while the sum is 39.

Adding to 211244423311434 its reverse (434113324442112), we get a palindrome (645357747753546).

The spelling of 211244423311434 in words is "two hundred eleven trillion, two hundred forty-four billion, four hundred twenty-three million, three hundred eleven thousand, four hundred thirty-four".