11522305013 has 16 divisors (see below), whose sum is σ = 11982745200. Its totient is φ = 11070452736.

The previous prime is 11522304979. The next prime is 11522305019. The reversal of 11522305013 is 31050322511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1211527249 + 10310777764 = 34807^2 + 101542^2 .

It is a cyclic number.

It is not a de Polignac number, because 11522305013 - 2⁶ = 11522304949 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 11522305013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522305019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153163 + ... + 1163111.

It is an arithmetic number, because the mean of its divisors is an integer number (748921575).

Almost surely, 2^11522305013 is an apocalyptic number.

It is an amenable number.

11522305013 is a deficient number, since it is larger than the sum of its proper divisors (460440187).

11522305013 is a wasteful number, since it uses less digits than its factorization.

11522305013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 11522305013 its reverse (31050322511), we get a palindrome (42572627524).

The spelling of 11522305013 in words is "eleven billion, five hundred twenty-two million, three hundred five thousand, thirteen".