11520515012623 has 4 divisors (see below), whose sum is σ = 11527792661088. Its totient is φ = 11513237364160.

The previous prime is 11520515012549. The next prime is 11520515012639. The reversal of 11520515012623 is 32621051502511.

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 11520515012623 - 2¹³ = 11520515004431 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 (11520515012663) 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, 3638821858 + ... + 3638825023.

It is an arithmetic number, because the mean of its divisors is an integer number (2881948165272).

Almost surely, 2^{11520515012623} is an apocalyptic number.

11520515012623 is a deficient number, since it is larger than the sum of its proper divisors (7277648465).

11520515012623 is an equidigital number, since it uses as much as digits as its factorization.

11520515012623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7277648464.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 11520515012623 in words is "eleven trillion, five hundred twenty billion, five hundred fifteen million, twelve thousand, six hundred twenty-three".