123530452000 has 48 divisors (see below), whose sum is σ = 303514330392. Its totient is φ = 49412179200.

The previous prime is 123530451971. The next prime is 123530452007. The reversal of 123530452000 is 254035321.

It can be written as a sum of positive squares in 4 ways, for example, as 19771734544 + 103758717456 = 140612^2 + 322116^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (123530452007) 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, 15437307 + ... + 15445306.

Almost surely, 2^123530452000 is an apocalyptic number.

123530452000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123530452000 is an abundant number, since it is smaller than the sum of its proper divisors (179983878392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123530452000 is an equidigital number, since it uses as much as digits as its factorization.

123530452000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30882638 (or 30882620 counting only the distinct ones).

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

Adding to 123530452000 its reverse (254035321), we get a palindrome (123784487321).

The spelling of 123530452000 in words is "one hundred twenty-three billion, five hundred thirty million, four hundred fifty-two thousand".