523805128858011 has 432 divisors, whose sum is σ = 997945436692512. Its totient is φ = 242039508480000.

The previous prime is 523805128857973. The next prime is 523805128858049. The reversal of 523805128858011 is 110858821508325.

It is an interprime number because it is at equal distance from previous prime (523805128857973) and next prime (523805128858049).

It is not a de Polignac number, because 523805128858011 - 2¹³ = 523805128849819 is a prime.

It is a super-2 number, since 2×523805128858011² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523805128848011) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 53553325941 + ... + 53553335721.

Almost surely, 2^{523805128858011} is an apocalyptic number.

523805128858011 is a deficient number, since it is larger than the sum of its proper divisors (474140307834501).

523805128858011 is a wasteful number, since it uses less digits than its factorization.

523805128858011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10136 (or 10087 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 57.

The spelling of 523805128858011 in words is "five hundred twenty-three trillion, eight hundred five billion, one hundred twenty-eight million, eight hundred fifty-eight thousand, eleven".