522123343 has 4 divisors (see below), whose sum is σ = 596712400. Its totient is φ = 447534288.

The previous prime is 522123331. The next prime is 522123347. The reversal of 522123343 is 343321225.

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 522123343 - 2⁵ = 522123311 is a prime.

It is a super-2 number, since 2×522123343² = 545225570610991298, which 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 (522123347) 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, 37294518 + ... + 37294531.

It is an arithmetic number, because the mean of its divisors is an integer number (149178100).

Almost surely, 2^522123343 is an apocalyptic number.

522123343 is a deficient number, since it is larger than the sum of its proper divisors (74589057).

522123343 is an equidigital number, since it uses as much as digits as its factorization.

522123343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74589056.

The product of its digits is 4320, while the sum is 25.

The square root of 522123343 is about 22850.0184463821. The cubic root of 522123343 is about 805.2382011804.

Adding to 522123343 its reverse (343321225), we get a palindrome (865444568).

It can be divided in two parts, 52212 and 3343, that added together give a palindrome (55555).

The spelling of 522123343 in words is "five hundred twenty-two million, one hundred twenty-three thousand, three hundred forty-three".