623350324013 has 4 divisors (see below), whose sum is σ = 623648722620. Its totient is φ = 623051925408.

The previous prime is 623350323943. The next prime is 623350324019. The reversal of 623350324013 is 310423053326.

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 460100386249 + 163249937764 = 678307^2 + 404042^2 .

It is a cyclic number.

It is not a de Polignac number, because 623350324013 - 2²⁸ = 623081888557 is a prime.

It is a super-2 number, since 2×623350324013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623350324019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149196170 + ... + 149200347.

It is an arithmetic number, because the mean of its divisors is an integer number (155912180655).

Almost surely, 2^623350324013 is an apocalyptic number.

It is an amenable number.

623350324013 is a deficient number, since it is larger than the sum of its proper divisors (298398607).

623350324013 is a wasteful number, since it uses less digits than its factorization.

623350324013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298398606.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 623350324013 its reverse (310423053326), we get a palindrome (933773377339).

The spelling of 623350324013 in words is "six hundred twenty-three billion, three hundred fifty million, three hundred twenty-four thousand, thirteen".