211404133013 has 4 divisors (see below), whose sum is σ = 211407068460. Its totient is φ = 211401197568.

The previous prime is 211404133009. The next prime is 211404133121. The reversal of 211404133013 is 310331404112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85604811889 + 125799321124 = 292583^2 + 354682^2 .

It is a cyclic number.

It is not a de Polignac number, because 211404133013 - 2² = 211404133009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211404133013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211404133613) 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, 1356908 + ... + 1504661.

It is an arithmetic number, because the mean of its divisors is an integer number (52851767115).

Almost surely, 2^211404133013 is an apocalyptic number.

It is an amenable number.

211404133013 is a deficient number, since it is larger than the sum of its proper divisors (2935447).

211404133013 is an equidigital number, since it uses as much as digits as its factorization.

211404133013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935446.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 211404133013 its reverse (310331404112), we get a palindrome (521735537125).

The spelling of 211404133013 in words is "two hundred eleven billion, four hundred four million, one hundred thirty-three thousand, thirteen".