211345409883 has 4 divisors (see below), whose sum is σ = 281793879848. Its totient is φ = 140896939920.

The previous prime is 211345409857. The next prime is 211345409909. The reversal of 211345409883 is 388904543112.

211345409883 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 an interprime number because it is at equal distance from previous prime (211345409857) and next prime (211345409909).

It is not a de Polignac number, because 211345409883 - 2⁵ = 211345409851 is a prime.

It is a super-2 number, since 2×211345409883² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211345409183) 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, 35224234978 + ... + 35224234983.

It is an arithmetic number, because the mean of its divisors is an integer number (70448469962).

Almost surely, 2^211345409883 is an apocalyptic number.

211345409883 is a deficient number, since it is larger than the sum of its proper divisors (70448469965).

211345409883 is an equidigital number, since it uses as much as digits as its factorization.

211345409883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70448469964.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 211345409883 in words is "two hundred eleven billion, three hundred forty-five million, four hundred nine thousand, eight hundred eighty-three".