523243043 has 4 divisors (see below), whose sum is σ = 523341288. Its totient is φ = 523144800.

The previous prime is 523243037. The next prime is 523243067. The reversal of 523243043 is 340342325.

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 523243043 - 2¹⁴ = 523226659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523243003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40646 + ... + 51947.

It is an arithmetic number, because the mean of its divisors is an integer number (130835322).

Almost surely, 2^523243043 is an apocalyptic number.

523243043 is a deficient number, since it is larger than the sum of its proper divisors (98245).

523243043 is an equidigital number, since it uses as much as digits as its factorization.

523243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98244.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 523243043 is about 22874.5063990461. The cubic root of 523243043 is about 805.8134046435.

Adding to 523243043 its reverse (340342325), we get a palindrome (863585368).

The spelling of 523243043 in words is "five hundred twenty-three million, two hundred forty-three thousand, forty-three".