211442302 has 4 divisors (see below), whose sum is σ = 317163456. Its totient is φ = 105721150.

The previous prime is 211442299. The next prime is 211442327. The reversal of 211442302 is 203244112.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211442302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52860574 + ... + 52860577.

It is an arithmetic number, because the mean of its divisors is an integer number (79290864).

Almost surely, 2^211442302 is an apocalyptic number.

211442302 is a deficient number, since it is larger than the sum of its proper divisors (105721154).

211442302 is a wasteful number, since it uses less digits than its factorization.

211442302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105721153.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 211442302 is about 14541.0557388382. The cubic root of 211442302 is about 595.7498743988.

Adding to 211442302 its reverse (203244112), we get a palindrome (414686414).

The spelling of 211442302 in words is "two hundred eleven million, four hundred forty-two thousand, three hundred two".