11520433501013 has 4 divisors (see below), whose sum is σ = 11584082305068. Its totient is φ = 11456784696960.

The previous prime is 11520433500973. The next prime is 11520433501021. The reversal of 11520433501013 is 31010533402511.

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 5832814274884 + 5687619226129 = 2415122^2 + 2384873^2 .

It is a cyclic number.

It is not a de Polignac number, because 11520433501013 - 2²⁰ = 11520432452437 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 (11520433501033) 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, 31824401756 + ... + 31824402117.

It is an arithmetic number, because the mean of its divisors is an integer number (2896020576267).

Almost surely, 2^{11520433501013} is an apocalyptic number.

It is an amenable number.

11520433501013 is a deficient number, since it is larger than the sum of its proper divisors (63648804055).

11520433501013 is an equidigital number, since it uses as much as digits as its factorization.

11520433501013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63648804054.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 11520433501013 its reverse (31010533402511), we get a palindrome (42530966903524).

The spelling of 11520433501013 in words is "eleven trillion, five hundred twenty billion, four hundred thirty-three million, five hundred one thousand, thirteen".