11521052323 has 4 divisors (see below), whose sum is σ = 12568420728. Its totient is φ = 10473683920.

The previous prime is 11521052321. The next prime is 11521052329. The reversal of 11521052323 is 32325012511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11521052323 - 2¹ = 11521052321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11521052321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523684186 + ... + 523684207.

It is an arithmetic number, because the mean of its divisors is an integer number (3142105182).

Almost surely, 2^11521052323 is an apocalyptic number.

11521052323 is a deficient number, since it is larger than the sum of its proper divisors (1047368405).

11521052323 is a wasteful number, since it uses less digits than its factorization.

11521052323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047368404.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 11521052323 its reverse (32325012511), we get a palindrome (43846064834).

The spelling of 11521052323 in words is "eleven billion, five hundred twenty-one million, fifty-two thousand, three hundred twenty-three".