211203342 has 128 divisors (see below), whose sum is σ = 593049600. Its totient is φ = 54286848.

The previous prime is 211203331. The next prime is 211203367. The reversal of 211203342 is 243302112.

211203342 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 (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147084 + ... + 148512.

It is an arithmetic number, because the mean of its divisors is an integer number (4633200).

Almost surely, 2^211203342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211203342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296524800).

211203342 is an abundant number, since it is smaller than the sum of its proper divisors (381846258).

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

211203342 is a wasteful number, since it uses less digits than its factorization.

211203342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 211203342 is about 14532.8366811163. The cubic root of 211203342 is about 595.5253623191.

Adding to 211203342 its reverse (243302112), we get a palindrome (454505454).

The spelling of 211203342 in words is "two hundred eleven million, two hundred three thousand, three hundred forty-two".