11340524521 has 4 divisors (see below), whose sum is σ = 11452807044. Its totient is φ = 11228242000.

The previous prime is 11340524513. The next prime is 11340524539. The reversal of 11340524521 is 12542504311.

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 7803248896 + 3537275625 = 88336^2 + 59475^2 .

It is a cyclic number.

It is not a de Polignac number, because 11340524521 - 2³ = 11340524513 is a prime.

It is a super-2 number, since 2×11340524521² (a number of 21 digits) contains 22 as substring.

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 11340524521.

It is not an unprimeable number, because it can be changed into a prime (11340524821) 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, 56141110 + ... + 56141311.

It is an arithmetic number, because the mean of its divisors is an integer number (2863201761).

Almost surely, 2^11340524521 is an apocalyptic number.

It is an amenable number.

11340524521 is a deficient number, since it is larger than the sum of its proper divisors (112282523).

11340524521 is a wasteful number, since it uses less digits than its factorization.

11340524521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112282522.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 11340524521 in words is "eleven billion, three hundred forty million, five hundred twenty-four thousand, five hundred twenty-one".