211343001340240 has 160 divisors (see below), whose sum is σ = 614590078003200. Its totient is φ = 65661331929600.

The previous prime is 211343001340231. The next prime is 211343001340241. The reversal of 211343001340240 is 42043100343112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 211343001340199 and 211343001340208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211343001340241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53243290 + ... + 57074809.

It is an arithmetic number, because the mean of its divisors is an integer number (3841187987520).

Almost surely, 2^{211343001340240} is an apocalyptic number.

211343001340240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211343001340240 is an abundant number, since it is smaller than the sum of its proper divisors (403247076662960).

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

211343001340240 is a wasteful number, since it uses less digits than its factorization.

211343001340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110318441 (or 110318435 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 211343001340240 its reverse (42043100343112), we get a palindrome (253386101683352).

The spelling of 211343001340240 in words is "two hundred eleven trillion, three hundred forty-three billion, one million, three hundred forty thousand, two hundred forty".