11341313205521 has 48 divisors (see below), whose sum is σ = 13041430718064. Its totient is φ = 9802322804736.

The previous prime is 11341313205461. The next prime is 11341313205569. The reversal of 11341313205521 is 12550231314311.

It can be written as a sum of positive squares in 24 ways, for example, as 3853510337296 + 7487802868225 = 1963036^2 + 2736385^2 .

It is not a de Polignac number, because 11341313205521 - 2⁴² = 6943266694417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11341313205581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 700375601 + ... + 700391793.

It is an arithmetic number, because the mean of its divisors is an integer number (271696473293).

Almost surely, 2^{11341313205521} is an apocalyptic number.

It is an amenable number.

11341313205521 is a deficient number, since it is larger than the sum of its proper divisors (1700117512543).

11341313205521 is a wasteful number, since it uses less digits than its factorization.

11341313205521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17190 (or 17173 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 11341313205521 its reverse (12550231314311), we get a palindrome (23891544519832).

The spelling of 11341313205521 in words is "eleven trillion, three hundred forty-one billion, three hundred thirteen million, two hundred five thousand, five hundred twenty-one".