211343341420 has 48 divisors (see below), whose sum is σ = 469965833568. Its totient is φ = 79558169600.

The previous prime is 211343341397. The next prime is 211343341427. The reversal of 211343341420 is 24143343112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (211343341427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8436834 + ... + 8461846.

It is an arithmetic number, because the mean of its divisors is an integer number (9790954866).

Almost surely, 2^211343341420 is an apocalyptic number.

211343341420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211343341420 is an abundant number, since it is smaller than the sum of its proper divisors (258622492148).

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

211343341420 is a wasteful number, since it uses less digits than its factorization.

211343341420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49890 (or 49888 counting only the distinct ones).

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

Adding to 211343341420 its reverse (24143343112), we get a palindrome (235486684532).

The spelling of 211343341420 in words is "two hundred eleven billion, three hundred forty-three million, three hundred forty-one thousand, four hundred twenty".