211404324142 has 64 divisors (see below), whose sum is σ = 367408742400. Its totient is φ = 90279398880.

The previous prime is 211404324139. The next prime is 211404324161. The reversal of 211404324142 is 241423404112.

It is a self number, because there is not a number n which added to its sum of digits gives 211404324142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46778959 + ... + 46783477.

It is an arithmetic number, because the mean of its divisors is an integer number (5740761600).

Almost surely, 2^211404324142 is an apocalyptic number.

211404324142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211404324142 is a deficient number, since it is larger than the sum of its proper divisors (156004418258).

211404324142 is a wasteful number, since it uses less digits than its factorization.

211404324142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 211404324142 its reverse (241423404112), we get a palindrome (452827728254).

The spelling of 211404324142 in words is "two hundred eleven billion, four hundred four million, three hundred twenty-four thousand, one hundred forty-two".