523424223131 has 4 divisors (see below), whose sum is σ = 523465324200. Its totient is φ = 523383122064.

The previous prime is 523424223121. The next prime is 523424223149. The reversal of 523424223131 is 131322424325.

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-523424223131 is a prime.

It is a super-2 number, since 2×523424223131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523424223121) 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, 20531426 + ... + 20556903.

It is an arithmetic number, because the mean of its divisors is an integer number (130866331050).

Almost surely, 2^523424223131 is an apocalyptic number.

523424223131 is a deficient number, since it is larger than the sum of its proper divisors (41101069).

523424223131 is a wasteful number, since it uses less digits than its factorization.

523424223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41101068.

The product of its digits is 34560, while the sum is 32.

Adding to 523424223131 its reverse (131322424325), we get a palindrome (654746647456).

The spelling of 523424223131 in words is "five hundred twenty-three billion, four hundred twenty-four million, two hundred twenty-three thousand, one hundred thirty-one".