515343212303323 has 4 divisors (see below), whose sum is σ = 516567305444608. Its totient is φ = 514119119162040.

The previous prime is 515343212303267. The next prime is 515343212303333. The reversal of 515343212303323 is 323303212343515.

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 515343212303323 - 2²¹ = 515343210206171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515343212303333) 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, 612046570011 + ... + 612046570852.

It is an arithmetic number, because the mean of its divisors is an integer number (129141826361152).

Almost surely, 2^{515343212303323} is an apocalyptic number.

515343212303323 is a deficient number, since it is larger than the sum of its proper divisors (1224093141285).

515343212303323 is a wasteful number, since it uses less digits than its factorization.

515343212303323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224093141284.

The product of its (nonzero) digits is 583200, while the sum is 40.

Adding to 515343212303323 its reverse (323303212343515), we get a palindrome (838646424646838).

The spelling of 515343212303323 in words is "five hundred fifteen trillion, three hundred forty-three billion, two hundred twelve million, three hundred three thousand, three hundred twenty-three".