211341042 has 64 divisors (see below), whose sum is σ = 542505600. Its totient is φ = 60272640.

The previous prime is 211341041. The next prime is 211341061. The reversal of 211341042 is 240143112.

211341042 is a `hidden beast` number, since 211 + 3 + 410 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211341041) 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, 367 + ... + 20562.

It is an arithmetic number, because the mean of its divisors is an integer number (8476650).

Almost surely, 2^211341042 is an apocalyptic number.

211341042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 211341042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271252800).

211341042 is an abundant number, since it is smaller than the sum of its proper divisors (331164558).

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

211341042 is a wasteful number, since it uses less digits than its factorization.

211341042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20968 (or 20962 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 211341042 is about 14537.5734563922. The cubic root of 211341042 is about 595.6547574106.

Adding to 211341042 its reverse (240143112), we get a palindrome (451484154).

The spelling of 211341042 in words is "two hundred eleven million, three hundred forty-one thousand, forty-two".