211343542 has 12 divisors (see below), whose sum is σ = 323118180. Its totient is φ = 103675208.

The previous prime is 211343533. The next prime is 211343543. The reversal of 211343542 is 245343112.

211343542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211343543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13192 + ... + 24427.

It is an arithmetic number, because the mean of its divisors is an integer number (26926515).

Almost surely, 2^211343542 is an apocalyptic number.

211343542 is a deficient number, since it is larger than the sum of its proper divisors (111774638).

211343542 is an equidigital number, since it uses as much as digits as its factorization.

211343542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37727 (or 37674 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 211343542 is about 14537.6594402263. The cubic root of 211343542 is about 595.6571061120.

Adding to 211343542 its reverse (245343112), we get a palindrome (456686654).

The spelling of 211343542 in words is "two hundred eleven million, three hundred forty-three thousand, five hundred forty-two".