211433403042 has 24 divisors (see below), whose sum is σ = 478023346944. Its totient is φ = 67413548664.

The previous prime is 211433403037. The next prime is 211433403043. The reversal of 211433403042 is 240304334112.

211433403042 is a `hidden beast` number, since 2 + 1 + 14 + 3 + 340 + 304 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 211433402997 and 211433403015.

It is not an unprimeable number, because it can be changed into a prime (211433403043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255353938 + ... + 255354765.

It is an arithmetic number, because the mean of its divisors is an integer number (19917639456).

Almost surely, 2^211433403042 is an apocalyptic number.

211433403042 is an abundant number, since it is smaller than the sum of its proper divisors (266589943902).

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

211433403042 is a wasteful number, since it uses less digits than its factorization.

211433403042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510708734 (or 510708731 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 211433403042 its reverse (240304334112), we get a palindrome (451737737154).

The spelling of 211433403042 in words is "two hundred eleven billion, four hundred thirty-three million, four hundred three thousand, forty-two".