523311420501 has 20 divisors (see below), whose sum is σ = 782232088000. Its totient is φ = 348653248776.

The previous prime is 523311420497. The next prime is 523311420553. The reversal of 523311420501 is 105024113325.

523311420501 is a `hidden beast` number, since 5 + 23 + 3 + 114 + 20 + 501 = 666.

It is not a de Polignac number, because 523311420501 - 2² = 523311420497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523311420001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1917901 + ... + 2173698.

It is an arithmetic number, because the mean of its divisors is an integer number (39111604400).

Almost surely, 2^523311420501 is an apocalyptic number.

It is an amenable number.

523311420501 is a deficient number, since it is larger than the sum of its proper divisors (258920667499).

523311420501 is a wasteful number, since it uses less digits than its factorization.

523311420501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093190 (or 4093181 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 523311420501 its reverse (105024113325), we get a palindrome (628335533826).

The spelling of 523311420501 in words is "five hundred twenty-three billion, three hundred eleven million, four hundred twenty thousand, five hundred one".