521110044011 has 8 divisors (see below), whose sum is σ = 526352623104. Its totient is φ = 515885267520.

The previous prime is 521110043981. The next prime is 521110044023. The reversal of 521110044011 is 110440011125.

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 521110044011 - 2⁶ = 521110043947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521110044031) 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, 4391810 + ... + 4508903.

It is an arithmetic number, because the mean of its divisors is an integer number (65794077888).

Almost surely, 2^521110044011 is an apocalyptic number.

521110044011 is a deficient number, since it is larger than the sum of its proper divisors (5242579093).

521110044011 is a wasteful number, since it uses less digits than its factorization.

521110044011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901301.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 521110044011 its reverse (110440011125), we get a palindrome (631550055136).

The spelling of 521110044011 in words is "five hundred twenty-one billion, one hundred ten million, forty-four thousand, eleven".