523015514235223 has 4 divisors (see below), whose sum is σ = 523090649354128. Its totient is φ = 522940379116320.

The previous prime is 523015514235217. The next prime is 523015514235257. The reversal of 523015514235223 is 322532415510325.

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 523015514235223 - 2⁴¹ = 520816490979671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523015514235223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523015514235523) 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, 37567549011 + ... + 37567562932.

It is an arithmetic number, because the mean of its divisors is an integer number (130772662338532).

Almost surely, 2^{523015514235223} is an apocalyptic number.

523015514235223 is a deficient number, since it is larger than the sum of its proper divisors (75135118905).

523015514235223 is an equidigital number, since it uses as much as digits as its factorization.

523015514235223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75135118904.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 523015514235223 its reverse (322532415510325), we get a palindrome (845547929745548).

The spelling of 523015514235223 in words is "five hundred twenty-three trillion, fifteen billion, five hundred fourteen million, two hundred thirty-five thousand, two hundred twenty-three".