110521209013 has 4 divisors (see below), whose sum is σ = 117022456620. Its totient is φ = 104019961408.

The previous prime is 110521208983. The next prime is 110521209053. The reversal of 110521209013 is 310902125011.

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 86729072004 + 23792137009 = 294498^2 + 154247^2 .

It is a cyclic number.

It is not a de Polignac number, because 110521209013 - 2¹³ = 110521200821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110521209053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250623778 + ... + 3250623811.

It is an arithmetic number, because the mean of its divisors is an integer number (29255614155).

Almost surely, 2^110521209013 is an apocalyptic number.

It is an amenable number.

110521209013 is a deficient number, since it is larger than the sum of its proper divisors (6501247607).

110521209013 is an equidigital number, since it uses as much as digits as its factorization.

110521209013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6501247606.

The product of its (nonzero) digits is 540, while the sum is 25.

The spelling of 110521209013 in words is "one hundred ten billion, five hundred twenty-one million, two hundred nine thousand, thirteen".