211712005340 has 48 divisors (see below), whose sum is σ = 485163423360. Its totient is φ = 76962300480.

The previous prime is 211712005289. The next prime is 211712005403. The reversal of 211712005340 is 43500217112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569339 + ... + 864621.

It is an arithmetic number, because the mean of its divisors is an integer number (10107571320).

Almost surely, 2^211712005340 is an apocalyptic number.

211712005340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211712005340 is an abundant number, since it is smaller than the sum of its proper divisors (273451418020).

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

211712005340 is a wasteful number, since it uses less digits than its factorization.

211712005340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298562 (or 298560 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 211712005340 in words is "two hundred eleven billion, seven hundred twelve million, five thousand, three hundred forty".