211443412142 has 4 divisors (see below), whose sum is σ = 317165118216. Its totient is φ = 105721706070.

The previous prime is 211443412121. The next prime is 211443412171. The reversal of 211443412142 is 241214344112.

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

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, 52860853034 + ... + 52860853037.

It is an arithmetic number, because the mean of its divisors is an integer number (79291279554).

Almost surely, 2^211443412142 is an apocalyptic number.

211443412142 is a deficient number, since it is larger than the sum of its proper divisors (105721706074).

211443412142 is a wasteful number, since it uses less digits than its factorization.

211443412142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105721706073.

The product of its digits is 6144, while the sum is 29.

Adding to 211443412142 its reverse (241214344112), we get a palindrome (452657756254).

The spelling of 211443412142 in words is "two hundred eleven billion, four hundred forty-three million, four hundred twelve thousand, one hundred forty-two".