523023235502543 has 4 divisors (see below), whose sum is σ = 523023312155808. Its totient is φ = 523023158849280.

The previous prime is 523023235502519. The next prime is 523023235502569. The reversal of 523023235502543 is 345205532320325.

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 523023235502543 - 2¹⁸ = 523023235240399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523023235502494 and 523023235502503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523223235502543) 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, 26970098 + ... + 42112143.

It is an arithmetic number, because the mean of its divisors is an integer number (130755828038952).

Almost surely, 2^{523023235502543} is an apocalyptic number.

523023235502543 is a deficient number, since it is larger than the sum of its proper divisors (76653265).

523023235502543 is an equidigital number, since it uses as much as digits as its factorization.

523023235502543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76653264.

The product of its (nonzero) digits is 3240000, while the sum is 44.

Adding to 523023235502543 its reverse (345205532320325), we get a palindrome (868228767822868).

The spelling of 523023235502543 in words is "five hundred twenty-three trillion, twenty-three billion, two hundred thirty-five million, five hundred two thousand, five hundred forty-three".