523045120521 has 32 divisors (see below), whose sum is σ = 869514605568. Its totient is φ = 271700187840.

The previous prime is 523045120457. The next prime is 523045120529. The reversal of 523045120521 is 125021540325.

It is not a de Polignac number, because 523045120521 - 2⁶ = 523045120457 is a prime.

It is a super-2 number, since 2×523045120521² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523045120529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9356971 + ... + 9412703.

It is an arithmetic number, because the mean of its divisors is an integer number (27172331424).

Almost surely, 2^523045120521 is an apocalyptic number.

It is an amenable number.

523045120521 is a deficient number, since it is larger than the sum of its proper divisors (346469485047).

523045120521 is a wasteful number, since it uses less digits than its factorization.

523045120521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96381.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 523045120521 its reverse (125021540325), we get a palindrome (648066660846).

The spelling of 523045120521 in words is "five hundred twenty-three billion, forty-five million, one hundred twenty thousand, five hundred twenty-one".