516342451123 has 4 divisors (see below), whose sum is σ = 516476674480. Its totient is φ = 516208227768.

The previous prime is 516342451117. The next prime is 516342451129. The reversal of 516342451123 is 321154243615.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (516342451117) and next prime (516342451129).

It is a cyclic number.

It is not a de Polignac number, because 516342451123 - 2⁵ = 516342451091 is a prime.

It is a super-2 number, since 2×516342451123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516342451129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67105908 + ... + 67113601.

It is an arithmetic number, because the mean of its divisors is an integer number (129119168620).

Almost surely, 2^516342451123 is an apocalyptic number.

516342451123 is a deficient number, since it is larger than the sum of its proper divisors (134223357).

516342451123 is a wasteful number, since it uses less digits than its factorization.

516342451123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134223356.

The product of its digits is 86400, while the sum is 37.

Adding to 516342451123 its reverse (321154243615), we get a palindrome (837496694738).

The spelling of 516342451123 in words is "five hundred sixteen billion, three hundred forty-two million, four hundred fifty-one thousand, one hundred twenty-three".