211420320041 has 12 divisors (see below), whose sum is σ = 246364191828. Its totient is φ = 180903324672.

The previous prime is 211420320029. The next prime is 211420320043. The reversal of 211420320041 is 140023024112.

It can be written as a sum of positive squares in 2 ways, for example, as 170551654441 + 40868665600 = 412979^2 + 202160^2 .

It is not a de Polignac number, because 211420320041 - 2⁶ = 211420319977 is a prime.

It is a super-3 number, since 3×211420320041³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211420319995 and 211420320022.

It is not an unprimeable number, because it can be changed into a prime (211420320043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3710636 + ... + 3767181.

It is an arithmetic number, because the mean of its divisors is an integer number (20530349319).

Almost surely, 2^211420320041 is an apocalyptic number.

It is an amenable number.

211420320041 is a deficient number, since it is larger than the sum of its proper divisors (34943871787).

211420320041 is an equidigital number, since it uses as much as digits as its factorization.

211420320041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478408 (or 7478401 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211420320041 its reverse (140023024112), we get a palindrome (351443344153).

The spelling of 211420320041 in words is "two hundred eleven billion, four hundred twenty million, three hundred twenty thousand, forty-one".