2323520012521 has 4 divisors (see below), whose sum is σ = 2336357139844. Its totient is φ = 2310682885200.

The previous prime is 2323520012503. The next prime is 2323520012551. The reversal of 2323520012521 is 1252100253232.

2323520012521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 922637091600 + 1400882920921 = 960540^2 + 1183589^2 .

It is a cyclic number.

It is not a de Polignac number, because 2323520012521 - 2⁷ = 2323520012393 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 2323520012521.

It is not an unprimeable number, because it can be changed into a prime (2323520012501) 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, 6418563390 + ... + 6418563751.

It is an arithmetic number, because the mean of its divisors is an integer number (584089284961).

Almost surely, 2^{2323520012521} is an apocalyptic number.

It is an amenable number.

2323520012521 is a deficient number, since it is larger than the sum of its proper divisors (12837127323).

2323520012521 is a wasteful number, since it uses less digits than its factorization.

2323520012521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837127322.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 2323520012521 its reverse (1252100253232), we get a palindrome (3575620265753).

The spelling of 2323520012521 in words is "two trillion, three hundred twenty-three billion, five hundred twenty million, twelve thousand, five hundred twenty-one".