23044521541513 has 4 divisors (see below), whose sum is σ = 23360199918868. Its totient is φ = 22728843164160.

The previous prime is 23044521541511. The next prime is 23044521541537. The reversal of 23044521541513 is 31514512544032.

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 4459179752329 + 18585341789184 = 2111677^2 + 4311072^2 .

It is a cyclic number.

It is not a de Polignac number, because 23044521541513 - 2¹ = 23044521541511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23044521541511) 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, 157839188568 + ... + 157839188713.

It is an arithmetic number, because the mean of its divisors is an integer number (5840049979717).

Almost surely, 2^{23044521541513} is an apocalyptic number.

It is an amenable number.

23044521541513 is a deficient number, since it is larger than the sum of its proper divisors (315678377355).

23044521541513 is an equidigital number, since it uses as much as digits as its factorization.

23044521541513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315678377354.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 23044521541513 in words is "twenty-three trillion, forty-four billion, five hundred twenty-one million, five hundred forty-one thousand, five hundred thirteen".