523130521435 has 4 divisors (see below), whose sum is σ = 627756625728. Its totient is φ = 418504417144.

The previous prime is 523130521427. The next prime is 523130521439. The reversal of 523130521435 is 534125031325.

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 523130521435 - 2³ = 523130521427 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 523130521435.

It is not an unprimeable number, because it can be changed into a prime (523130521439) 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, 52313052139 + ... + 52313052148.

It is an arithmetic number, because the mean of its divisors is an integer number (156939156432).

Almost surely, 2^523130521435 is an apocalyptic number.

523130521435 is a deficient number, since it is larger than the sum of its proper divisors (104626104293).

523130521435 is a wasteful number, since it uses less digits than its factorization.

523130521435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104626104292.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 523130521435 in words is "five hundred twenty-three billion, one hundred thirty million, five hundred twenty-one thousand, four hundred thirty-five".