211204102340 has 48 divisors (see below), whose sum is σ = 552970744704. Its totient is φ = 65829849600.

The previous prime is 211204102331. The next prime is 211204102367. The reversal of 211204102340 is 43201402112.

211204102340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 15 ways as a sum of consecutive naturals, for example, 68571221 + ... + 68574300.

It is an arithmetic number, because the mean of its divisors is an integer number (11520223848).

Almost surely, 2^211204102340 is an apocalyptic number.

211204102340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211204102340 is an abundant number, since it is smaller than the sum of its proper divisors (341766642364).

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

211204102340 is a wasteful number, since it uses less digits than its factorization.

211204102340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137145548 (or 137145546 counting only the distinct ones).

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

Adding to 211204102340 its reverse (43201402112), we get a palindrome (254405504452).

The spelling of 211204102340 in words is "two hundred eleven billion, two hundred four million, one hundred two thousand, three hundred forty".