211424122439 has 4 divisors (see below), whose sum is σ = 214579706424. Its totient is φ = 208268538456.

The previous prime is 211424122387. The next prime is 211424122457. The reversal of 211424122439 is 934221424112.

211424122439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211424122439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211424122399 and 211424122408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211424122639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1577791892 + ... + 1577792025.

It is an arithmetic number, because the mean of its divisors is an integer number (53644926606).

Almost surely, 2^211424122439 is an apocalyptic number.

211424122439 is a deficient number, since it is larger than the sum of its proper divisors (3155583985).

211424122439 is an equidigital number, since it uses as much as digits as its factorization.

211424122439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155583984.

The product of its digits is 27648, while the sum is 35.

The spelling of 211424122439 in words is "two hundred eleven billion, four hundred twenty-four million, one hundred twenty-two thousand, four hundred thirty-nine".