211542340134011 has 8 divisors (see below), whose sum is σ = 211579763319120. Its totient is φ = 211504917750048.

The previous prime is 211542340133977. The next prime is 211542340134029. The reversal of 211542340134011 is 110431043245112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211542340134011 - 2¹⁰ = 211542340132987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211542340134511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815040320 + ... + 815299826.

It is an arithmetic number, because the mean of its divisors is an integer number (26447470414890).

Almost surely, 2^{211542340134011} is an apocalyptic number.

211542340134011 is a deficient number, since it is larger than the sum of its proper divisors (37423185109).

211542340134011 is a wasteful number, since it uses less digits than its factorization.

211542340134011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400573.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 211542340134011 its reverse (110431043245112), we get a palindrome (321973383379123).

The spelling of 211542340134011 in words is "two hundred eleven trillion, five hundred forty-two billion, three hundred forty million, one hundred thirty-four thousand, eleven".