200123510523 has 8 divisors (see below), whose sum is σ = 267558409728. Its totient is φ = 133052142504.

The previous prime is 200123510491. The next prime is 200123510527. The reversal of 200123510523 is 325015321002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200123510523 - 2⁵ = 200123510491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200123510493 and 200123510502.

It is not an unprimeable number, because it can be changed into a prime (200123510527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90881511 + ... + 90883712.

It is an arithmetic number, because the mean of its divisors is an integer number (33444801216).

Almost surely, 2^200123510523 is an apocalyptic number.

200123510523 is a deficient number, since it is larger than the sum of its proper divisors (67434899205).

200123510523 is a wasteful number, since it uses less digits than its factorization.

200123510523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181765593.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 200123510523 its reverse (325015321002), we get a palindrome (525138831525).

The spelling of 200123510523 in words is "two hundred billion, one hundred twenty-three million, five hundred ten thousand, five hundred twenty-three".