123530000452 has 24 divisors (see below), whose sum is σ = 223815009600. Its totient is φ = 59586342816.

The previous prime is 123530000417. The next prime is 123530000459. The reversal of 123530000452 is 254000035321.

It is a super-2 number, since 2×123530000452² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123530000459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293502 + ... + 577237.

It is an arithmetic number, because the mean of its divisors is an integer number (9325625400).

Almost surely, 2^123530000452 is an apocalyptic number.

It is an amenable number.

123530000452 is a deficient number, since it is larger than the sum of its proper divisors (100285009148).

123530000452 is a wasteful number, since it uses less digits than its factorization.

123530000452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871995 (or 871993 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 123530000452 its reverse (254000035321), we get a palindrome (377530035773).

The spelling of 123530000452 in words is "one hundred twenty-three billion, five hundred thirty million, four hundred fifty-two", and thus it is an aban number.