211142010040 has 32 divisors (see below), whose sum is σ = 511613333280. Its totient is φ = 77960126592.

The previous prime is 211142010031. The next prime is 211142010059. The reversal of 211142010040 is 40010241112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211142009996 and 211142010023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203020644 + ... + 203021683.

It is an arithmetic number, because the mean of its divisors is an integer number (15987916665).

Almost surely, 2^211142010040 is an apocalyptic number.

211142010040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211142010040 is an abundant number, since it is smaller than the sum of its proper divisors (300471323240).

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

211142010040 is a wasteful number, since it uses less digits than its factorization.

211142010040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406042351 (or 406042347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211142010040 its reverse (40010241112), we get a palindrome (251152251152).

The spelling of 211142010040 in words is "two hundred eleven billion, one hundred forty-two million, ten thousand, forty".