500042121343 has 4 divisors (see below), whose sum is σ = 500715126288. Its totient is φ = 499369116400.

The previous prime is 500042121323. The next prime is 500042121413. The reversal of 500042121343 is 343121240005.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500042121343 is a prime.

It is a super-2 number, since 2×500042121343² (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 (500042121323) 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, 336501358 + ... + 336502843.

It is an arithmetic number, because the mean of its divisors is an integer number (125178781572).

Almost surely, 2^500042121343 is an apocalyptic number.

500042121343 is a deficient number, since it is larger than the sum of its proper divisors (673004945).

500042121343 is an equidigital number, since it uses as much as digits as its factorization.

500042121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673004944.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 500042121343 its reverse (343121240005), we get a palindrome (843163361348).

The spelling of 500042121343 in words is "five hundred billion, forty-two million, one hundred twenty-one thousand, three hundred forty-three".