211143242042 has 8 divisors (see below), whose sum is σ = 320273457300. Its totient is φ = 104385422944.

The previous prime is 211143241999. The next prime is 211143242059. The reversal of 211143242042 is 240242341112.

It can be written as a sum of positive squares in 2 ways, for example, as 173339828281 + 37803413761 = 416341^2 + 194431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593098817 + ... + 593099172.

Almost surely, 2^211143242042 is an apocalyptic number.

211143242042 is a deficient number, since it is larger than the sum of its proper divisors (109130215258).

211143242042 is a wasteful number, since it uses less digits than its factorization.

211143242042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186198080.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 211143242042 its reverse (240242341112), we get a palindrome (451385583154).

The spelling of 211143242042 in words is "two hundred eleven billion, one hundred forty-three million, two hundred forty-two thousand, forty-two".