513314123323 has 4 divisors (see below), whose sum is σ = 513336386088. Its totient is φ = 513291860560.

The previous prime is 513314123297. The next prime is 513314123351. The reversal of 513314123323 is 323321413315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323321413315 = 5 ⋅64664282663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513314123323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513314123423) 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, 11096761 + ... + 11142922.

It is an arithmetic number, because the mean of its divisors is an integer number (128334096522).

Almost surely, 2^513314123323 is an apocalyptic number.

513314123323 is a deficient number, since it is larger than the sum of its proper divisors (22262765).

513314123323 is a wasteful number, since it uses less digits than its factorization.

513314123323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22262764.

The product of its digits is 19440, while the sum is 31.

Adding to 513314123323 its reverse (323321413315), we get a palindrome (836635536638).

The spelling of 513314123323 in words is "five hundred thirteen billion, three hundred fourteen million, one hundred twenty-three thousand, three hundred twenty-three".