211433120011 has 4 divisors (see below), whose sum is σ = 211435114072. Its totient is φ = 211431125952.

The previous prime is 211433119979. The next prime is 211433120021. The reversal of 211433120011 is 110021334112.

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

It is a cyclic number.

It is not a de Polignac number, because 211433120011 - 2⁵ = 211433119979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211433120021) by changing a digit.

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, 828486 + ... + 1053211.

It is an arithmetic number, because the mean of its divisors is an integer number (52858778518).

Almost surely, 2^211433120011 is an apocalyptic number.

211433120011 is a deficient number, since it is larger than the sum of its proper divisors (1994061).

211433120011 is a wasteful number, since it uses less digits than its factorization.

211433120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994060.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211433120011 its reverse (110021334112), we get a palindrome (321454454123).

The spelling of 211433120011 in words is "two hundred eleven billion, four hundred thirty-three million, one hundred twenty thousand, eleven".