123452505330 has 256 divisors, whose sum is σ = 376921645056. Its totient is φ = 25134520320.

The previous prime is 123452505307. The next prime is 123452505331. The reversal of 123452505330 is 33505254321.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 123452505291 and 123452505300.

It is not an unprimeable number, because it can be changed into a prime (123452505331) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26472579 + ... + 26477241.

It is an arithmetic number, because the mean of its divisors is an integer number (1472350176).

Almost surely, 2^123452505330 is an apocalyptic number.

123452505330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123452505330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188460822528).

123452505330 is an abundant number, since it is smaller than the sum of its proper divisors (253469139726).

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

123452505330 is a wasteful number, since it uses less digits than its factorization.

123452505330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 123452505330 its reverse (33505254321), we get a palindrome (156957759651).

The spelling of 123452505330 in words is "one hundred twenty-three billion, four hundred fifty-two million, five hundred five thousand, three hundred thirty".