23512321540313 has 4 divisors (see below), whose sum is σ = 23512343369700. Its totient is φ = 23512299710928.

The previous prime is 23512321540307. The next prime is 23512321540447. The reversal of 23512321540313 is 31304512321532.

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 6385991810704 + 17126329729609 = 2527052^2 + 4138397^2 .

It is a cyclic number.

It is not a de Polignac number, because 23512321540313 - 2¹² = 23512321536217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23512321510313) 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, 9210338 + ... + 11482811.

It is an arithmetic number, because the mean of its divisors is an integer number (5878085842425).

Almost surely, 2^{23512321540313} is an apocalyptic number.

It is an amenable number.

23512321540313 is a deficient number, since it is larger than the sum of its proper divisors (21829387).

23512321540313 is a wasteful number, since it uses less digits than its factorization.

23512321540313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21829386.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 23512321540313 its reverse (31304512321532), we get a palindrome (54816833861845).

The spelling of 23512321540313 in words is "twenty-three trillion, five hundred twelve billion, three hundred twenty-one million, five hundred forty thousand, three hundred thirteen".